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Finding the Fourth Proportional to 80,432.38, 120,656.77 and 27,841.71

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Solution

The fourth proportional to 80,432.38, 120,656.77 and 27,841.71 is: 41,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,432.38 : 120,656.77 = 27,841.71 : x
  2. Step 2: Convert to fraction form
    80,432.38/120,656.77 = 27,841.71/x
  3. Step 3: Cross multiply
    80,432.38x = 120,656.77 × 27,841.71
  4. Step 4: Simplify right side
    80,432.38x = 3,359,290,799.88
  5. Step 5: Solve for x
    x = 3,359,290,799.88/80,432.38
  6. Step 6: Final answer
    x = 41,765.41

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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.