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Finding the Third Proportional to 45,512 and 71,241

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Solution

The third proportional to 45,512 and 71,241 is: 111,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,512 : 71,241 = 71,241 : x
  2. Step 2: Convert to fraction form
    45,512/71,241 = 71,241/x
  3. Step 3: Cross multiply
    45,512x = 71,241 × 71,241
  4. Step 4: Simplify right side
    45,512x = 5,075,280,081
  5. Step 5: Solve for x
    x = 5,075,280,081/45,512
  6. Step 6: Final answer
    x = 111,515.21

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.