Home / 87,947.15-131,919.30-27,974.75

Finding the Fourth Proportional to 87,947.15, 131,919.30 and 27,974.75

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Solution

The fourth proportional to 87,947.15, 131,919.30 and 27,974.75 is: 41,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.15 : 131,919.30 = 27,974.75 : x
  2. Step 2: Convert to fraction form
    87,947.15/131,919.30 = 27,974.75/x
  3. Step 3: Cross multiply
    87,947.15x = 131,919.30 × 27,974.75
  4. Step 4: Simplify right side
    87,947.15x = 3,690,408,778.08
  5. Step 5: Solve for x
    x = 3,690,408,778.08/87,947.15
  6. Step 6: Final answer
    x = 41,961.67

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1.5x scale

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.