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Finding the Fourth Proportional to 63,315.60, 87,385.02 and 39,449.94

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Solution

The fourth proportional to 63,315.60, 87,385.02 and 39,449.94 is: 54,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,315.60 : 87,385.02 = 39,449.94 : x
  2. Step 2: Convert to fraction form
    63,315.60/87,385.02 = 39,449.94/x
  3. Step 3: Cross multiply
    63,315.60x = 87,385.02 × 39,449.94
  4. Step 4: Simplify right side
    63,315.60x = 3,447,333,795.90
  5. Step 5: Solve for x
    x = 3,447,333,795.90/63,315.60
  6. Step 6: Final answer
    x = 54,446.83

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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.