Finding the Fourth Proportional to 71,161.29, 106,728.98 and 29,030.49
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Solution
The fourth proportional to 71,161.29, 106,728.98 and 29,030.49 is: 43,540.45
Step by Step Solution
- Step 1: Write the proportion equation
71,161.29 : 106,728.98 = 29,030.49 : x - Step 2: Convert to fraction form
71,161.29/106,728.98 = 29,030.49/x - Step 3: Cross multiply
71,161.29x = 106,728.98 × 29,030.49 - Step 4: Simplify right side
71,161.29x = 3,098,394,441.45 - Step 5: Solve for x
x = 3,098,394,441.45/71,161.29 - Step 6: Final answer
x = 43,540.45
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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.