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Finding the Third Proportional to 21,987 and 44,751.66

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Solution

The third proportional to 21,987 and 44,751.66 is: 91,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987 : 44,751.66 = 44,751.66 : x
  2. Step 2: Convert to fraction form
    21,987/44,751.66 = 44,751.66/x
  3. Step 3: Cross multiply
    21,987x = 44,751.66 × 44,751.66
  4. Step 4: Simplify right side
    21,987x = 2,002,710,737.12
  5. Step 5: Solve for x
    x = 2,002,710,737.12/21,987
  6. Step 6: Final answer
    x = 91,086.13

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.