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Finding the Third Proportional to 18,877.97 and 40,648.78

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Solution

The third proportional to 18,877.97 and 40,648.78 is: 87,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.97 : 40,648.78 = 40,648.78 : x
  2. Step 2: Convert to fraction form
    18,877.97/40,648.78 = 40,648.78/x
  3. Step 3: Cross multiply
    18,877.97x = 40,648.78 × 40,648.78
  4. Step 4: Simplify right side
    18,877.97x = 1,652,323,417.11
  5. Step 5: Solve for x
    x = 1,652,323,417.11/18,877.97
  6. Step 6: Final answer
    x = 87,526.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.