25 is what percent of 87.72 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 87.72 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 87.72, so we can write it down as 100%=87.72.
4. We know, that x% equals 25 of the output value, so we can write it down as x%=25.
5. Now we have two simple equations:
1) 100%=87.72
2) x%=25
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=87.72/25
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 25 is what percent of 87.72

100%/x%=87.72/25
(100/x)*x=(87.72/25)*x       - we multiply both sides of the equation by x
100=3.5088*x       - we divide both sides of the equation by (3.5088) to get x
100/3.5088=x
28.499772001824=x
x=28.499772001824

now we have:
25 is 28.499772001824% of 87.72