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Finding the Third Proportional to 28,020 and 60,287

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Solution

The third proportional to 28,020 and 60,287 is: 129,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020 : 60,287 = 60,287 : x
  2. Step 2: Convert to fraction form
    28,020/60,287 = 60,287/x
  3. Step 3: Cross multiply
    28,020x = 60,287 × 60,287
  4. Step 4: Simplify right side
    28,020x = 3,634,522,369
  5. Step 5: Solve for x
    x = 3,634,522,369/28,020
  6. Step 6: Final answer
    x = 129,711.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.