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Finding the Third Proportional to 39,117 and 80,055

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Solution

The third proportional to 39,117 and 80,055 is: 163,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,117 : 80,055 = 80,055 : x
  2. Step 2: Convert to fraction form
    39,117/80,055 = 80,055/x
  3. Step 3: Cross multiply
    39,117x = 80,055 × 80,055
  4. Step 4: Simplify right side
    39,117x = 6,408,803,025
  5. Step 5: Solve for x
    x = 6,408,803,025/39,117
  6. Step 6: Final answer
    x = 163,836.77

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.