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Finding the Third Proportional to 56,700 and 81,162

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Solution

The third proportional to 56,700 and 81,162 is: 116,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,700 : 81,162 = 81,162 : x
  2. Step 2: Convert to fraction form
    56,700/81,162 = 81,162/x
  3. Step 3: Cross multiply
    56,700x = 81,162 × 81,162
  4. Step 4: Simplify right side
    56,700x = 6,587,270,244
  5. Step 5: Solve for x
    x = 6,587,270,244/56,700
  6. Step 6: Final answer
    x = 116,177.61

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.