42.1 is what percent of 67 - 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 67 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 67, so we can write it down as 100%=67.
4. We know, that x% equals 42.1 of the output value, so we can write it down as x%=42.1.
5. Now we have two simple equations:
1) 100%=67
2) x%=42.1
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%=67/42.1
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 42.1 is what percent of 67

100%/x%=67/42.1
(100/x)*x=(67/42.1)*x       - we multiply both sides of the equation by x
100=1.5914489311164*x       - we divide both sides of the equation by (1.5914489311164) to get x
100/1.5914489311164=x
62.835820895522=x
x=62.835820895522

now we have:
42.1 is 62.835820895522% of 67