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Finding the Third Proportional to 36,900 and 55,387

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Solution

The third proportional to 36,900 and 55,387 is: 83,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,900 : 55,387 = 55,387 : x
  2. Step 2: Convert to fraction form
    36,900/55,387 = 55,387/x
  3. Step 3: Cross multiply
    36,900x = 55,387 × 55,387
  4. Step 4: Simplify right side
    36,900x = 3,067,719,769
  5. Step 5: Solve for x
    x = 3,067,719,769/36,900
  6. Step 6: Final answer
    x = 83,136.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.