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Finding the Fourth Proportional to 63,238.28, 87,311.22 and 39,374.60

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Solution

The fourth proportional to 63,238.28, 87,311.22 and 39,374.60 is: 54,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,238.28 : 87,311.22 = 39,374.60 : x
  2. Step 2: Convert to fraction form
    63,238.28/87,311.22 = 39,374.60/x
  3. Step 3: Cross multiply
    63,238.28x = 87,311.22 × 39,374.60
  4. Step 4: Simplify right side
    63,238.28x = 3,437,844,363.01
  5. Step 5: Solve for x
    x = 3,437,844,363.01/63,238.28
  6. Step 6: Final answer
    x = 54,363.34

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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.