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Finding the Fourth Proportional to 80,404.92, 120,572.28 and 32,987.52

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Solution

The fourth proportional to 80,404.92, 120,572.28 and 32,987.52 is: 49,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,404.92 : 120,572.28 = 32,987.52 : x
  2. Step 2: Convert to fraction form
    80,404.92/120,572.28 = 32,987.52/x
  3. Step 3: Cross multiply
    80,404.92x = 120,572.28 × 32,987.52
  4. Step 4: Simplify right side
    80,404.92x = 3,977,380,497.95
  5. Step 5: Solve for x
    x = 3,977,380,497.95/80,404.92
  6. Step 6: Final answer
    x = 49,466.88

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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.