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Finding the Third Proportional to 28,491 and 60,870

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Solution

The third proportional to 28,491 and 60,870 is: 130,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491 : 60,870 = 60,870 : x
  2. Step 2: Convert to fraction form
    28,491/60,870 = 60,870/x
  3. Step 3: Cross multiply
    28,491x = 60,870 × 60,870
  4. Step 4: Simplify right side
    28,491x = 3,705,156,900
  5. Step 5: Solve for x
    x = 3,705,156,900/28,491
  6. Step 6: Final answer
    x = 130,046.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.