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Finding the Fourth Proportional to 81,106.00, 121,702.56 and 33,753.73

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Solution

The fourth proportional to 81,106.00, 121,702.56 and 33,753.73 is: 50,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,106.00 : 121,702.56 = 33,753.73 : x
  2. Step 2: Convert to fraction form
    81,106.00/121,702.56 = 33,753.73/x
  3. Step 3: Cross multiply
    81,106.00x = 121,702.56 × 33,753.73
  4. Step 4: Simplify right side
    81,106.00x = 4,107,915,350.55
  5. Step 5: Solve for x
    x = 4,107,915,350.55/81,106.00
  6. Step 6: Final answer
    x = 50,648.73

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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.