Finding the Fourth Proportional to 86,625.92, 129,943.74 and 24,301.28
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Solution
The fourth proportional to 86,625.92, 129,943.74 and 24,301.28 is: 36,453.28
Step by Step Solution
- Step 1: Write the proportion equation
86,625.92 : 129,943.74 = 24,301.28 : x - Step 2: Convert to fraction form
86,625.92/129,943.74 = 24,301.28/x - Step 3: Cross multiply
86,625.92x = 129,943.74 × 24,301.28 - Step 4: Simplify right side
86,625.92x = 3,157,799,209.99 - Step 5: Solve for x
x = 3,157,799,209.99/86,625.92 - Step 6: Final answer
x = 36,453.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.