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Finding the Fourth Proportional to 68,165.77, 94,044.41 and 39,469.76

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Solution

The fourth proportional to 68,165.77, 94,044.41 and 39,469.76 is: 54,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.77 : 94,044.41 = 39,469.76 : x
  2. Step 2: Convert to fraction form
    68,165.77/94,044.41 = 39,469.76/x
  3. Step 3: Cross multiply
    68,165.77x = 94,044.41 × 39,469.76
  4. Step 4: Simplify right side
    68,165.77x = 3,711,910,876.17
  5. Step 5: Solve for x
    x = 3,711,910,876.17/68,165.77
  6. Step 6: Final answer
    x = 54,454.18

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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.