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Finding the Fourth Proportional to 63.38, 87.34 and 44.92

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Solution

The fourth proportional to 63.38, 87.34 and 44.92 is: 61.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.38 : 87.34 = 44.92 : x
  2. Step 2: Convert to fraction form
    63.38/87.34 = 44.92/x
  3. Step 3: Cross multiply
    63.38x = 87.34 × 44.92
  4. Step 4: Simplify right side
    63.38x = 3,923.31
  5. Step 5: Solve for x
    x = 3,923.31/63.38
  6. Step 6: Final answer
    x = 61.90

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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.