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Finding the Third Proportional to 38,926 and 80,620

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Solution

The third proportional to 38,926 and 80,620 is: 166,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,926 : 80,620 = 80,620 : x
  2. Step 2: Convert to fraction form
    38,926/80,620 = 80,620/x
  3. Step 3: Cross multiply
    38,926x = 80,620 × 80,620
  4. Step 4: Simplify right side
    38,926x = 6,499,584,400
  5. Step 5: Solve for x
    x = 6,499,584,400/38,926
  6. Step 6: Final answer
    x = 166,972.83

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.