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Finding the Third Proportional to 36,980.50 and 81,000.75

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Solution

The third proportional to 36,980.50 and 81,000.75 is: 177,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,980.50 : 81,000.75 = 81,000.75 : x
  2. Step 2: Convert to fraction form
    36,980.50/81,000.75 = 81,000.75/x
  3. Step 3: Cross multiply
    36,980.50x = 81,000.75 × 81,000.75
  4. Step 4: Simplify right side
    36,980.50x = 6,561,121,500.56
  5. Step 5: Solve for x
    x = 6,561,121,500.56/36,980.50
  6. Step 6: Final answer
    x = 177,421.11

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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.