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Finding the Third Proportional to 39,943.75 and 87,739.25

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Solution

The third proportional to 39,943.75 and 87,739.25 is: 192,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.75 : 87,739.25 = 87,739.25 : x
  2. Step 2: Convert to fraction form
    39,943.75/87,739.25 = 87,739.25/x
  3. Step 3: Cross multiply
    39,943.75x = 87,739.25 × 87,739.25
  4. Step 4: Simplify right side
    39,943.75x = 7,698,175,990.56
  5. Step 5: Solve for x
    x = 7,698,175,990.56/39,943.75
  6. Step 6: Final answer
    x = 192,725.42

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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.