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Finding the Third Proportional to 57,374 and 87,706

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Solution

The third proportional to 57,374 and 87,706 is: 134,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,374 : 87,706 = 87,706 : x
  2. Step 2: Convert to fraction form
    57,374/87,706 = 87,706/x
  3. Step 3: Cross multiply
    57,374x = 87,706 × 87,706
  4. Step 4: Simplify right side
    57,374x = 7,692,342,436
  5. Step 5: Solve for x
    x = 7,692,342,436/57,374
  6. Step 6: Final answer
    x = 134,073.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.