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Finding the Third Proportional to 38,727 and 79,551

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Solution

The third proportional to 38,727 and 79,551 is: 163,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,727 : 79,551 = 79,551 : x
  2. Step 2: Convert to fraction form
    38,727/79,551 = 79,551/x
  3. Step 3: Cross multiply
    38,727x = 79,551 × 79,551
  4. Step 4: Simplify right side
    38,727x = 6,328,361,601
  5. Step 5: Solve for x
    x = 6,328,361,601/38,727
  6. Step 6: Final answer
    x = 163,409.55

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.