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Finding the Fourth Proportional to 71,100.92, 98,118.96 and 39,269.66

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Solution

The fourth proportional to 71,100.92, 98,118.96 and 39,269.66 is: 54,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,100.92 : 98,118.96 = 39,269.66 : x
  2. Step 2: Convert to fraction form
    71,100.92/98,118.96 = 39,269.66/x
  3. Step 3: Cross multiply
    71,100.92x = 98,118.96 × 39,269.66
  4. Step 4: Simplify right side
    71,100.92x = 3,853,098,198.75
  5. Step 5: Solve for x
    x = 3,853,098,198.75/71,100.92
  6. Step 6: Final answer
    x = 54,191.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.