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Finding the Third Proportional to 28,081 and 62,389

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Solution

The third proportional to 28,081 and 62,389 is: 138,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081 : 62,389 = 62,389 : x
  2. Step 2: Convert to fraction form
    28,081/62,389 = 62,389/x
  3. Step 3: Cross multiply
    28,081x = 62,389 × 62,389
  4. Step 4: Simplify right side
    28,081x = 3,892,387,321
  5. Step 5: Solve for x
    x = 3,892,387,321/28,081
  6. Step 6: Final answer
    x = 138,612.85

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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.