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Finding the Fourth Proportional to 80,372.52, 120,425.94 and 27,752.76

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Solution

The fourth proportional to 80,372.52, 120,425.94 and 27,752.76 is: 41,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.52 : 120,425.94 = 27,752.76 : x
  2. Step 2: Convert to fraction form
    80,372.52/120,425.94 = 27,752.76/x
  3. Step 3: Cross multiply
    80,372.52x = 120,425.94 × 27,752.76
  4. Step 4: Simplify right side
    80,372.52x = 3,342,152,210.59
  5. Step 5: Solve for x
    x = 3,342,152,210.59/80,372.52
  6. Step 6: Final answer
    x = 41,583.27

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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.