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Finding the Third Proportional to 56,206 and 84,680

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Solution

The third proportional to 56,206 and 84,680 is: 127,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,206 : 84,680 = 84,680 : x
  2. Step 2: Convert to fraction form
    56,206/84,680 = 84,680/x
  3. Step 3: Cross multiply
    56,206x = 84,680 × 84,680
  4. Step 4: Simplify right side
    56,206x = 7,170,702,400
  5. Step 5: Solve for x
    x = 7,170,702,400/56,206
  6. Step 6: Final answer
    x = 127,578.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.