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Finding the Fourth Proportional to 68,850, 95,013 and 39,042

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Solution

The fourth proportional to 68,850, 95,013 and 39,042 is: 53,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850 : 95,013 = 39,042 : x
  2. Step 2: Convert to fraction form
    68,850/95,013 = 39,042/x
  3. Step 3: Cross multiply
    68,850x = 95,013 × 39,042
  4. Step 4: Simplify right side
    68,850x = 3,709,497,546
  5. Step 5: Solve for x
    x = 3,709,497,546/68,850
  6. Step 6: Final answer
    x = 53,877.96

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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.