Home / 73,177.11-109,765.67-20,586.57

Finding the Fourth Proportional to 73,177.11, 109,765.67 and 20,586.57

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Solution

The fourth proportional to 73,177.11, 109,765.67 and 20,586.57 is: 30,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,177.11 : 109,765.67 = 20,586.57 : x
  2. Step 2: Convert to fraction form
    73,177.11/109,765.67 = 20,586.57/x
  3. Step 3: Cross multiply
    73,177.11x = 109,765.67 × 20,586.57
  4. Step 4: Simplify right side
    73,177.11x = 2,259,698,546.12
  5. Step 5: Solve for x
    x = 2,259,698,546.12/73,177.11
  6. Step 6: Final answer
    x = 30,879.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.