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Finding the Third Proportional to 20,072 and 36,999

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Solution

The third proportional to 20,072 and 36,999 is: 68,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072 : 36,999 = 36,999 : x
  2. Step 2: Convert to fraction form
    20,072/36,999 = 36,999/x
  3. Step 3: Cross multiply
    20,072x = 36,999 × 36,999
  4. Step 4: Simplify right side
    20,072x = 1,368,926,001
  5. Step 5: Solve for x
    x = 1,368,926,001/20,072
  6. Step 6: Final answer
    x = 68,200.78

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.