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Finding the Third Proportional to 57,476 and 81,126

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Solution

The third proportional to 57,476 and 81,126 is: 114,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,476 : 81,126 = 81,126 : x
  2. Step 2: Convert to fraction form
    57,476/81,126 = 81,126/x
  3. Step 3: Cross multiply
    57,476x = 81,126 × 81,126
  4. Step 4: Simplify right side
    57,476x = 6,581,427,876
  5. Step 5: Solve for x
    x = 6,581,427,876/57,476
  6. Step 6: Final answer
    x = 114,507.41

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.