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Finding the Third Proportional to 34,515 and 51,759

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Solution

The third proportional to 34,515 and 51,759 is: 77,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515 : 51,759 = 51,759 : x
  2. Step 2: Convert to fraction form
    34,515/51,759 = 51,759/x
  3. Step 3: Cross multiply
    34,515x = 51,759 × 51,759
  4. Step 4: Simplify right side
    34,515x = 2,678,994,081
  5. Step 5: Solve for x
    x = 2,678,994,081/34,515
  6. Step 6: Final answer
    x = 77,618.26

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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.