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Finding the Third Proportional to 38,666 and 82,070

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Solution

The third proportional to 38,666 and 82,070 is: 174,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666 : 82,070 = 82,070 : x
  2. Step 2: Convert to fraction form
    38,666/82,070 = 82,070/x
  3. Step 3: Cross multiply
    38,666x = 82,070 × 82,070
  4. Step 4: Simplify right side
    38,666x = 6,735,484,900
  5. Step 5: Solve for x
    x = 6,735,484,900/38,666
  6. Step 6: Final answer
    x = 174,196.58

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.