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Finding the Fourth Proportional to 83,134.60, 124,701.90 and 49,892.20

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Solution

The fourth proportional to 83,134.60, 124,701.90 and 49,892.20 is: 74,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,134.60 : 124,701.90 = 49,892.20 : x
  2. Step 2: Convert to fraction form
    83,134.60/124,701.90 = 49,892.20/x
  3. Step 3: Cross multiply
    83,134.60x = 124,701.90 × 49,892.20
  4. Step 4: Simplify right side
    83,134.60x = 6,221,652,135.18
  5. Step 5: Solve for x
    x = 6,221,652,135.18/83,134.60
  6. Step 6: Final answer
    x = 74,838.30

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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.