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Finding the Fourth Proportional to 83,671.72, 125,193.86 and 49,813.88

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Solution

The fourth proportional to 83,671.72, 125,193.86 and 49,813.88 is: 74,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,671.72 : 125,193.86 = 49,813.88 : x
  2. Step 2: Convert to fraction form
    83,671.72/125,193.86 = 49,813.88/x
  3. Step 3: Cross multiply
    83,671.72x = 125,193.86 × 49,813.88
  4. Step 4: Simplify right side
    83,671.72x = 6,236,391,918.78
  5. Step 5: Solve for x
    x = 6,236,391,918.78/83,671.72
  6. Step 6: Final answer
    x = 74,534.05

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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.