39.7 is what percent of 63.4 - 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 63.4 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 63.4, so we can write it down as 100%=63.4.
4. We know, that x% equals 39.7 of the output value, so we can write it down as x%=39.7.
5. Now we have two simple equations:
1) 100%=63.4
2) x%=39.7
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%=63.4/39.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 39.7 is what percent of 63.4

100%/x%=63.4/39.7
(100/x)*x=(63.4/39.7)*x       - we multiply both sides of the equation by x
100=1.5969773299748*x       - we divide both sides of the equation by (1.5969773299748) to get x
100/1.5969773299748=x
62.618296529968=x
x=62.618296529968

now we have:
39.7 is 62.618296529968% of 63.4