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Finding the Third Proportional to 20,810 and 45,862

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Solution

The third proportional to 20,810 and 45,862 is: 101,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810 : 45,862 = 45,862 : x
  2. Step 2: Convert to fraction form
    20,810/45,862 = 45,862/x
  3. Step 3: Cross multiply
    20,810x = 45,862 × 45,862
  4. Step 4: Simplify right side
    20,810x = 2,103,323,044
  5. Step 5: Solve for x
    x = 2,103,323,044/20,810
  6. Step 6: Final answer
    x = 101,072.71

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.