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Finding the Third Proportional to 21,549 and 45,059

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Solution

The third proportional to 21,549 and 45,059 is: 94,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549 : 45,059 = 45,059 : x
  2. Step 2: Convert to fraction form
    21,549/45,059 = 45,059/x
  3. Step 3: Cross multiply
    21,549x = 45,059 × 45,059
  4. Step 4: Simplify right side
    21,549x = 2,030,313,481
  5. Step 5: Solve for x
    x = 2,030,313,481/21,549
  6. Step 6: Final answer
    x = 94,218.45

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.