Home / 87,856.80-131,785.20-48,393.60

Finding the Fourth Proportional to 87,856.80, 131,785.20 and 48,393.60

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Solution

The fourth proportional to 87,856.80, 131,785.20 and 48,393.60 is: 72,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,856.80 : 131,785.20 = 48,393.60 : x
  2. Step 2: Convert to fraction form
    87,856.80/131,785.20 = 48,393.60/x
  3. Step 3: Cross multiply
    87,856.80x = 131,785.20 × 48,393.60
  4. Step 4: Simplify right side
    87,856.80x = 6,377,560,254.72
  5. Step 5: Solve for x
    x = 6,377,560,254.72/87,856.80
  6. Step 6: Final answer
    x = 72,590.40

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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.