54.9 is what percent of 70 - 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 70 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 70, so we can write it down as 100%=70.
4. We know, that x% equals 54.9 of the output value, so we can write it down as x%=54.9.
5. Now we have two simple equations:
1) 100%=70
2) x%=54.9
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%=70/54.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 54.9 is what percent of 70

100%/x%=70/54.9
(100/x)*x=(70/54.9)*x       - we multiply both sides of the equation by x
100=1.2750455373406*x       - we divide both sides of the equation by (1.2750455373406) to get x
100/1.2750455373406=x
78.428571428571=x
x=78.428571428571

now we have:
54.9 is 78.428571428571% of 70