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Finding the Third Proportional to 39,785 and 85,797

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Solution

The third proportional to 39,785 and 85,797 is: 185,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785 : 85,797 = 85,797 : x
  2. Step 2: Convert to fraction form
    39,785/85,797 = 85,797/x
  3. Step 3: Cross multiply
    39,785x = 85,797 × 85,797
  4. Step 4: Simplify right side
    39,785x = 7,361,125,209
  5. Step 5: Solve for x
    x = 7,361,125,209/39,785
  6. Step 6: Final answer
    x = 185,022.63

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.