Finding the Fourth Proportional to 71,787.26, 107,698.01 and 36,161.03
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Solution
The fourth proportional to 71,787.26, 107,698.01 and 36,161.03 is: 54,250.17
Step by Step Solution
- Step 1: Write the proportion equation
71,787.26 : 107,698.01 = 36,161.03 : x - Step 2: Convert to fraction form
71,787.26/107,698.01 = 36,161.03/x - Step 3: Cross multiply
71,787.26x = 107,698.01 × 36,161.03 - Step 4: Simplify right side
71,787.26x = 3,894,471,058.99 - Step 5: Solve for x
x = 3,894,471,058.99/71,787.26 - Step 6: Final answer
x = 54,250.17
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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.