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Finding the Third Proportional to 39,667 and 82,622

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Solution

The third proportional to 39,667 and 82,622 is: 172,092.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,667 : 82,622 = 82,622 : x
  2. Step 2: Convert to fraction form
    39,667/82,622 = 82,622/x
  3. Step 3: Cross multiply
    39,667x = 82,622 × 82,622
  4. Step 4: Simplify right side
    39,667x = 6,826,394,884
  5. Step 5: Solve for x
    x = 6,826,394,884/39,667
  6. Step 6: Final answer
    x = 172,092.54

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.