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Finding the Third Proportional to 55,812 and 85,017

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Solution

The third proportional to 55,812 and 85,017 is: 129,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,812 : 85,017 = 85,017 : x
  2. Step 2: Convert to fraction form
    55,812/85,017 = 85,017/x
  3. Step 3: Cross multiply
    55,812x = 85,017 × 85,017
  4. Step 4: Simplify right side
    55,812x = 7,227,890,289
  5. Step 5: Solve for x
    x = 7,227,890,289/55,812
  6. Step 6: Final answer
    x = 129,504.23

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.