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Finding the Fourth Proportional to 87,337.80, 120,404.12 and 73,854.96

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Solution

The fourth proportional to 87,337.80, 120,404.12 and 73,854.96 is: 101,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,337.80 : 120,404.12 = 73,854.96 : x
  2. Step 2: Convert to fraction form
    87,337.80/120,404.12 = 73,854.96/x
  3. Step 3: Cross multiply
    87,337.80x = 120,404.12 × 73,854.96
  4. Step 4: Simplify right side
    87,337.80x = 8,892,441,466.44
  5. Step 5: Solve for x
    x = 8,892,441,466.44/87,337.80
  6. Step 6: Final answer
    x = 101,816.64

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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.