Home / 87,182.56-130,793.22-31,778.56

Finding the Fourth Proportional to 87,182.56, 130,793.22 and 31,778.56

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Solution

The fourth proportional to 87,182.56, 130,793.22 and 31,778.56 is: 47,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,182.56 : 130,793.22 = 31,778.56 : x
  2. Step 2: Convert to fraction form
    87,182.56/130,793.22 = 31,778.56/x
  3. Step 3: Cross multiply
    87,182.56x = 130,793.22 × 31,778.56
  4. Step 4: Simplify right side
    87,182.56x = 4,156,420,189.36
  5. Step 5: Solve for x
    x = 4,156,420,189.36/87,182.56
  6. Step 6: Final answer
    x = 47,674.90

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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.