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Finding the Third Proportional to 51,999 and 78,366

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Solution

The third proportional to 51,999 and 78,366 is: 118,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,999 : 78,366 = 78,366 : x
  2. Step 2: Convert to fraction form
    51,999/78,366 = 78,366/x
  3. Step 3: Cross multiply
    51,999x = 78,366 × 78,366
  4. Step 4: Simplify right side
    51,999x = 6,141,229,956
  5. Step 5: Solve for x
    x = 6,141,229,956/51,999
  6. Step 6: Final answer
    x = 118,102.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.