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Finding the Fourth Proportional to 63,391.50, 95,098.60 and 21,285.30

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Solution

The fourth proportional to 63,391.50, 95,098.60 and 21,285.30 is: 31,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,391.50 : 95,098.60 = 21,285.30 : x
  2. Step 2: Convert to fraction form
    63,391.50/95,098.60 = 21,285.30/x
  3. Step 3: Cross multiply
    63,391.50x = 95,098.60 × 21,285.30
  4. Step 4: Simplify right side
    63,391.50x = 2,024,202,230.58
  5. Step 5: Solve for x
    x = 2,024,202,230.58/63,391.50
  6. Step 6: Final answer
    x = 31,931.76

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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.