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Finding the Third Proportional to 38,079 and 78,587

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Solution

The third proportional to 38,079 and 78,587 is: 162,186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079 : 78,587 = 78,587 : x
  2. Step 2: Convert to fraction form
    38,079/78,587 = 78,587/x
  3. Step 3: Cross multiply
    38,079x = 78,587 × 78,587
  4. Step 4: Simplify right side
    38,079x = 6,175,916,569
  5. Step 5: Solve for x
    x = 6,175,916,569/38,079
  6. Step 6: Final answer
    x = 162,186.94

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.