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Finding the Third Proportional to 40,488 and 60,840

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Solution

The third proportional to 40,488 and 60,840 is: 91,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,488 : 60,840 = 60,840 : x
  2. Step 2: Convert to fraction form
    40,488/60,840 = 60,840/x
  3. Step 3: Cross multiply
    40,488x = 60,840 × 60,840
  4. Step 4: Simplify right side
    40,488x = 3,701,505,600
  5. Step 5: Solve for x
    x = 3,701,505,600/40,488
  6. Step 6: Final answer
    x = 91,422.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.