Finding the Fourth Proportional to 57,702, 79,629 and 31,206
Calculator
Solution
The fourth proportional to 57,702, 79,629 and 31,206 is: 43,064.41
Step by Step Solution
- Step 1: Write the proportion equation
57,702 : 79,629 = 31,206 : x - Step 2: Convert to fraction form
57,702/79,629 = 31,206/x - Step 3: Cross multiply
57,702x = 79,629 × 31,206 - Step 4: Simplify right side
57,702x = 2,484,902,574 - Step 5: Solve for x
x = 2,484,902,574/57,702 - Step 6: Final answer
x = 43,064.41
Related Problems
Find fourth proportional to 28,851, 39,814.50 and 15,603
Half scale
Find fourth proportional to 115,404, 159,258 and 62,412
Double scale
Find fourth proportional to 57,703, 79,630.38 and 31,207
Similar ratio
Find fourth proportional to 86,553, 119,443.50 and 46,809
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.