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Finding the Fourth Proportional to 63,589, 87,760.92 and 38,438.52

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Solution

The fourth proportional to 63,589, 87,760.92 and 38,438.52 is: 53,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,589 : 87,760.92 = 38,438.52 : x
  2. Step 2: Convert to fraction form
    63,589/87,760.92 = 38,438.52/x
  3. Step 3: Cross multiply
    63,589x = 87,760.92 × 38,438.52
  4. Step 4: Simplify right side
    63,589x = 3,373,399,878.64
  5. Step 5: Solve for x
    x = 3,373,399,878.64/63,589
  6. Step 6: Final answer
    x = 53,050.05

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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.