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Finding the Fourth Proportional to 80,373.52, 120,427.44 and 27,753.76

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Solution

The fourth proportional to 80,373.52, 120,427.44 and 27,753.76 is: 41,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,373.52 : 120,427.44 = 27,753.76 : x
  2. Step 2: Convert to fraction form
    80,373.52/120,427.44 = 27,753.76/x
  3. Step 3: Cross multiply
    80,373.52x = 120,427.44 × 27,753.76
  4. Step 4: Simplify right side
    80,373.52x = 3,342,314,267.17
  5. Step 5: Solve for x
    x = 3,342,314,267.17/80,373.52
  6. Step 6: Final answer
    x = 41,584.77

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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.