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Finding the Third Proportional to 38,859 and 80,479.50

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Solution

The third proportional to 38,859 and 80,479.50 is: 166,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,859 : 80,479.50 = 80,479.50 : x
  2. Step 2: Convert to fraction form
    38,859/80,479.50 = 80,479.50/x
  3. Step 3: Cross multiply
    38,859x = 80,479.50 × 80,479.50
  4. Step 4: Simplify right side
    38,859x = 6,476,949,920.25
  5. Step 5: Solve for x
    x = 6,476,949,920.25/38,859
  6. Step 6: Final answer
    x = 166,678.24

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.