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Finding the Third Proportional to 40,005 and 57,170.25

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Solution

The third proportional to 40,005 and 57,170.25 is: 81,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005 : 57,170.25 = 57,170.25 : x
  2. Step 2: Convert to fraction form
    40,005/57,170.25 = 57,170.25/x
  3. Step 3: Cross multiply
    40,005x = 57,170.25 × 57,170.25
  4. Step 4: Simplify right side
    40,005x = 3,268,437,485.06
  5. Step 5: Solve for x
    x = 3,268,437,485.06/40,005
  6. Step 6: Final answer
    x = 81,700.72

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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.