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Finding the Fourth Proportional to 63,609.78, 95,414.69 and 21,489.99

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Solution

The fourth proportional to 63,609.78, 95,414.69 and 21,489.99 is: 32,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,609.78 : 95,414.69 = 21,489.99 : x
  2. Step 2: Convert to fraction form
    63,609.78/95,414.69 = 21,489.99/x
  3. Step 3: Cross multiply
    63,609.78x = 95,414.69 × 21,489.99
  4. Step 4: Simplify right side
    63,609.78x = 2,050,460,733.95
  5. Step 5: Solve for x
    x = 2,050,460,733.95/63,609.78
  6. Step 6: Final answer
    x = 32,234.99

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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.