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Finding the Third Proportional to 30,892 and 49,740

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Solution

The third proportional to 30,892 and 49,740 is: 80,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,892 : 49,740 = 49,740 : x
  2. Step 2: Convert to fraction form
    30,892/49,740 = 49,740/x
  3. Step 3: Cross multiply
    30,892x = 49,740 × 49,740
  4. Step 4: Simplify right side
    30,892x = 2,474,067,600
  5. Step 5: Solve for x
    x = 2,474,067,600/30,892
  6. Step 6: Final answer
    x = 80,087.65

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.