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Finding the Fourth Proportional to 71,439.57, 107,151.80 and 29,324.09

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Solution

The fourth proportional to 71,439.57, 107,151.80 and 29,324.09 is: 43,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.57 : 107,151.80 = 29,324.09 : x
  2. Step 2: Convert to fraction form
    71,439.57/107,151.80 = 29,324.09/x
  3. Step 3: Cross multiply
    71,439.57x = 107,151.80 × 29,324.09
  4. Step 4: Simplify right side
    71,439.57x = 3,142,129,148.12
  5. Step 5: Solve for x
    x = 3,142,129,148.12/71,439.57
  6. Step 6: Final answer
    x = 43,983.04

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1.5x scale

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.