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Finding the Third Proportional to 39,072 and 85,596

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Solution

The third proportional to 39,072 and 85,596 is: 187,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072 : 85,596 = 85,596 : x
  2. Step 2: Convert to fraction form
    39,072/85,596 = 85,596/x
  3. Step 3: Cross multiply
    39,072x = 85,596 × 85,596
  4. Step 4: Simplify right side
    39,072x = 7,326,675,216
  5. Step 5: Solve for x
    x = 7,326,675,216/39,072
  6. Step 6: Final answer
    x = 187,517.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.