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Finding the Third Proportional to 38,790 and 80,006.63

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Solution

The third proportional to 38,790 and 80,006.63 is: 165,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,790 : 80,006.63 = 80,006.63 : x
  2. Step 2: Convert to fraction form
    38,790/80,006.63 = 80,006.63/x
  3. Step 3: Cross multiply
    38,790x = 80,006.63 × 80,006.63
  4. Step 4: Simplify right side
    38,790x = 6,401,060,043.89
  5. Step 5: Solve for x
    x = 6,401,060,043.89/38,790
  6. Step 6: Final answer
    x = 165,018.30

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.