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Finding the Fourth Proportional to 40,387.80, 60,581.70 and 29,234.10

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Solution

The fourth proportional to 40,387.80, 60,581.70 and 29,234.10 is: 43,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.80 : 60,581.70 = 29,234.10 : x
  2. Step 2: Convert to fraction form
    40,387.80/60,581.70 = 29,234.10/x
  3. Step 3: Cross multiply
    40,387.80x = 60,581.70 × 29,234.10
  4. Step 4: Simplify right side
    40,387.80x = 1,771,051,475.97
  5. Step 5: Solve for x
    x = 1,771,051,475.97/40,387.80
  6. Step 6: Final answer
    x = 43,851.15

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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.