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Finding the Third Proportional to 36,219 and 76,785

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Solution

The third proportional to 36,219 and 76,785 is: 162,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219 : 76,785 = 76,785 : x
  2. Step 2: Convert to fraction form
    36,219/76,785 = 76,785/x
  3. Step 3: Cross multiply
    36,219x = 76,785 × 76,785
  4. Step 4: Simplify right side
    36,219x = 5,895,936,225
  5. Step 5: Solve for x
    x = 5,895,936,225/36,219
  6. Step 6: Final answer
    x = 162,785.73

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.