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Finding the Fourth Proportional to 68,165.50, 94,044.05 and 39,469.50

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Solution

The fourth proportional to 68,165.50, 94,044.05 and 39,469.50 is: 54,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.50 : 94,044.05 = 39,469.50 : x
  2. Step 2: Convert to fraction form
    68,165.50/94,044.05 = 39,469.50/x
  3. Step 3: Cross multiply
    68,165.50x = 94,044.05 × 39,469.50
  4. Step 4: Simplify right side
    68,165.50x = 3,711,871,631.48
  5. Step 5: Solve for x
    x = 3,711,871,631.48/68,165.50
  6. Step 6: Final answer
    x = 54,453.82

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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.