54.2 is what percent of 72.8 - 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 72.8 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 72.8, so we can write it down as 100%=72.8.
4. We know, that x% equals 54.2 of the output value, so we can write it down as x%=54.2.
5. Now we have two simple equations:
1) 100%=72.8
2) x%=54.2
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%=72.8/54.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 54.2 is what percent of 72.8

100%/x%=72.8/54.2
(100/x)*x=(72.8/54.2)*x       - we multiply both sides of the equation by x
100=1.3431734317343*x       - we divide both sides of the equation by (1.3431734317343) to get x
100/1.3431734317343=x
74.450549450549=x
x=74.450549450549

now we have:
54.2 is 74.450549450549% of 72.8