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Finding the Third Proportional to 39,279 and 58,761.75

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Solution

The third proportional to 39,279 and 58,761.75 is: 87,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279 : 58,761.75 = 58,761.75 : x
  2. Step 2: Convert to fraction form
    39,279/58,761.75 = 58,761.75/x
  3. Step 3: Cross multiply
    39,279x = 58,761.75 × 58,761.75
  4. Step 4: Simplify right side
    39,279x = 3,452,943,263.06
  5. Step 5: Solve for x
    x = 3,452,943,263.06/39,279
  6. Step 6: Final answer
    x = 87,908.13

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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.