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Finding the Third Proportional to 18,615.38 and 40,511.25

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Solution

The third proportional to 18,615.38 and 40,511.25 is: 88,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.38 : 40,511.25 = 40,511.25 : x
  2. Step 2: Convert to fraction form
    18,615.38/40,511.25 = 40,511.25/x
  3. Step 3: Cross multiply
    18,615.38x = 40,511.25 × 40,511.25
  4. Step 4: Simplify right side
    18,615.38x = 1,641,161,376.56
  5. Step 5: Solve for x
    x = 1,641,161,376.56/18,615.38
  6. Step 6: Final answer
    x = 88,161.61

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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.