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Finding the Third Proportional to 40,009.50 and 57,177

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Solution

The third proportional to 40,009.50 and 57,177 is: 81,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,009.50 : 57,177 = 57,177 : x
  2. Step 2: Convert to fraction form
    40,009.50/57,177 = 57,177/x
  3. Step 3: Cross multiply
    40,009.50x = 57,177 × 57,177
  4. Step 4: Simplify right side
    40,009.50x = 3,269,209,329
  5. Step 5: Solve for x
    x = 3,269,209,329/40,009.50
  6. Step 6: Final answer
    x = 81,710.83

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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.