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Finding the Third Proportional to 39,540.50 and 86,377

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Solution

The third proportional to 39,540.50 and 86,377 is: 188,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.50 : 86,377 = 86,377 : x
  2. Step 2: Convert to fraction form
    39,540.50/86,377 = 86,377/x
  3. Step 3: Cross multiply
    39,540.50x = 86,377 × 86,377
  4. Step 4: Simplify right side
    39,540.50x = 7,460,986,129
  5. Step 5: Solve for x
    x = 7,460,986,129/39,540.50
  6. Step 6: Final answer
    x = 188,692.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.