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Finding the Third Proportional to 39,935 and 85,702

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Solution

The third proportional to 39,935 and 85,702 is: 183,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935 : 85,702 = 85,702 : x
  2. Step 2: Convert to fraction form
    39,935/85,702 = 85,702/x
  3. Step 3: Cross multiply
    39,935x = 85,702 × 85,702
  4. Step 4: Simplify right side
    39,935x = 7,344,832,804
  5. Step 5: Solve for x
    x = 7,344,832,804/39,935
  6. Step 6: Final answer
    x = 183,919.69

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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.