Finding the Fourth Proportional to 71,348.36, 106,929.56 and 39,757.14
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Solution
The fourth proportional to 71,348.36, 106,929.56 and 39,757.14 is: 59,583.90
Step by Step Solution
- Step 1: Write the proportion equation
71,348.36 : 106,929.56 = 39,757.14 : x - Step 2: Convert to fraction form
71,348.36/106,929.56 = 39,757.14/x - Step 3: Cross multiply
71,348.36x = 106,929.56 × 39,757.14 - Step 4: Simplify right side
71,348.36x = 4,251,213,487.06 - Step 5: Solve for x
x = 4,251,213,487.06/71,348.36 - Step 6: Final answer
x = 59,583.90
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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.