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Finding the Third Proportional to 28,080 and 62,387

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Solution

The third proportional to 28,080 and 62,387 is: 138,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080 : 62,387 = 62,387 : x
  2. Step 2: Convert to fraction form
    28,080/62,387 = 62,387/x
  3. Step 3: Cross multiply
    28,080x = 62,387 × 62,387
  4. Step 4: Simplify right side
    28,080x = 3,892,137,769
  5. Step 5: Solve for x
    x = 3,892,137,769/28,080
  6. Step 6: Final answer
    x = 138,608.89

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.