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Finding the Fourth Proportional to 63,773.92, 87,984.24 and 39,891.52

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Solution

The fourth proportional to 63,773.92, 87,984.24 and 39,891.52 is: 55,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,773.92 : 87,984.24 = 39,891.52 : x
  2. Step 2: Convert to fraction form
    63,773.92/87,984.24 = 39,891.52/x
  3. Step 3: Cross multiply
    63,773.92x = 87,984.24 × 39,891.52
  4. Step 4: Simplify right side
    63,773.92x = 3,509,825,069.64
  5. Step 5: Solve for x
    x = 3,509,825,069.64/63,773.92
  6. Step 6: Final answer
    x = 55,035.43

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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.