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Finding the Third Proportional to 51,167.25 and 78,937.88

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Solution

The third proportional to 51,167.25 and 78,937.88 is: 121,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,167.25 : 78,937.88 = 78,937.88 : x
  2. Step 2: Convert to fraction form
    51,167.25/78,937.88 = 78,937.88/x
  3. Step 3: Cross multiply
    51,167.25x = 78,937.88 × 78,937.88
  4. Step 4: Simplify right side
    51,167.25x = 6,231,188,109.52
  5. Step 5: Solve for x
    x = 6,231,188,109.52/51,167.25
  6. Step 6: Final answer
    x = 121,780.79

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