Finding the Fourth Proportional to 86,161.35, 129,248.17 and 22,981.12
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Solution
The fourth proportional to 86,161.35, 129,248.17 and 22,981.12 is: 34,473.31
Step by Step Solution
- Step 1: Write the proportion equation
86,161.35 : 129,248.17 = 22,981.12 : x - Step 2: Convert to fraction form
86,161.35/129,248.17 = 22,981.12/x - Step 3: Cross multiply
86,161.35x = 129,248.17 × 22,981.12 - Step 4: Simplify right side
86,161.35x = 2,970,267,058.31 - Step 5: Solve for x
x = 2,970,267,058.31/86,161.35 - Step 6: Final answer
x = 34,473.31
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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.