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Finding the Third Proportional to 31,737 and 68,937

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Solution

The third proportional to 31,737 and 68,937 is: 149,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,737 : 68,937 = 68,937 : x
  2. Step 2: Convert to fraction form
    31,737/68,937 = 68,937/x
  3. Step 3: Cross multiply
    31,737x = 68,937 × 68,937
  4. Step 4: Simplify right side
    31,737x = 4,752,309,969
  5. Step 5: Solve for x
    x = 4,752,309,969/31,737
  6. Step 6: Final answer
    x = 149,740.37

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.