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Finding the Third Proportional to 28,719 and 61,650

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Solution

The third proportional to 28,719 and 61,650 is: 132,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719 : 61,650 = 61,650 : x
  2. Step 2: Convert to fraction form
    28,719/61,650 = 61,650/x
  3. Step 3: Cross multiply
    28,719x = 61,650 × 61,650
  4. Step 4: Simplify right side
    28,719x = 3,800,722,500
  5. Step 5: Solve for x
    x = 3,800,722,500/28,719
  6. Step 6: Final answer
    x = 132,341.74

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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.