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Finding the Third Proportional to 55,491 and 85,668

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Solution

The third proportional to 55,491 and 85,668 is: 132,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,491 : 85,668 = 85,668 : x
  2. Step 2: Convert to fraction form
    55,491/85,668 = 85,668/x
  3. Step 3: Cross multiply
    55,491x = 85,668 × 85,668
  4. Step 4: Simplify right side
    55,491x = 7,339,006,224
  5. Step 5: Solve for x
    x = 7,339,006,224/55,491
  6. Step 6: Final answer
    x = 132,255.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.