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Finding the Third Proportional to 45,122 and 68,619

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Solution

The third proportional to 45,122 and 68,619 is: 104,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,122 : 68,619 = 68,619 : x
  2. Step 2: Convert to fraction form
    45,122/68,619 = 68,619/x
  3. Step 3: Cross multiply
    45,122x = 68,619 × 68,619
  4. Step 4: Simplify right side
    45,122x = 4,708,567,161
  5. Step 5: Solve for x
    x = 4,708,567,161/45,122
  6. Step 6: Final answer
    x = 104,351.92

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.