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Finding the Third Proportional to 56,630 and 85,087

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Solution

The third proportional to 56,630 and 85,087 is: 127,843.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,630 : 85,087 = 85,087 : x
  2. Step 2: Convert to fraction form
    56,630/85,087 = 85,087/x
  3. Step 3: Cross multiply
    56,630x = 85,087 × 85,087
  4. Step 4: Simplify right side
    56,630x = 7,239,797,569
  5. Step 5: Solve for x
    x = 7,239,797,569/56,630
  6. Step 6: Final answer
    x = 127,843.86

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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.