54 is what percent of 129.6 - 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 129.6 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 129.6, so we can write it down as 100%=129.6.
4. We know, that x% equals 54 of the output value, so we can write it down as x%=54.
5. Now we have two simple equations:
1) 100%=129.6
2) x%=54
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%=129.6/54
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 54 is what percent of 129.6

100%/x%=129.6/54
(100/x)*x=(129.6/54)*x       - we multiply both sides of the equation by x
100=2.4*x       - we divide both sides of the equation by (2.4) to get x
100/2.4=x
41.666666666667=x
x=41.666666666667

now we have:
54 is 41.666666666667% of 129.6