Home / 80,079.18-120,091.50-26,759.31

Finding the Fourth Proportional to 80,079.18, 120,091.50 and 26,759.31

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Solution

The fourth proportional to 80,079.18, 120,091.50 and 26,759.31 is: 40,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,079.18 : 120,091.50 = 26,759.31 : x
  2. Step 2: Convert to fraction form
    80,079.18/120,091.50 = 26,759.31/x
  3. Step 3: Cross multiply
    80,079.18x = 120,091.50 × 26,759.31
  4. Step 4: Simplify right side
    80,079.18x = 3,213,565,676.87
  5. Step 5: Solve for x
    x = 3,213,565,676.87/80,079.18
  6. Step 6: Final answer
    x = 40,129.85

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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.