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Finding the Third Proportional to 20,171 and 51,065

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Solution

The third proportional to 20,171 and 51,065 is: 129,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171 : 51,065 = 51,065 : x
  2. Step 2: Convert to fraction form
    20,171/51,065 = 51,065/x
  3. Step 3: Cross multiply
    20,171x = 51,065 × 51,065
  4. Step 4: Simplify right side
    20,171x = 2,607,634,225
  5. Step 5: Solve for x
    x = 2,607,634,225/20,171
  6. Step 6: Final answer
    x = 129,276.40

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Why These Related Problems?

These problems maintain the same ratio (2.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.