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Finding the Third Proportional to 20,172.75 and 43,115.25

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Solution

The third proportional to 20,172.75 and 43,115.25 is: 92,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.75 : 43,115.25 = 43,115.25 : x
  2. Step 2: Convert to fraction form
    20,172.75/43,115.25 = 43,115.25/x
  3. Step 3: Cross multiply
    20,172.75x = 43,115.25 × 43,115.25
  4. Step 4: Simplify right side
    20,172.75x = 1,858,924,782.56
  5. Step 5: Solve for x
    x = 1,858,924,782.56/20,172.75
  6. Step 6: Final answer
    x = 92,150.29

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.