Home / 87,715.38-131,574.70-28,550.82

Finding the Fourth Proportional to 87,715.38, 131,574.70 and 28,550.82

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Solution

The fourth proportional to 87,715.38, 131,574.70 and 28,550.82 is: 42,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,715.38 : 131,574.70 = 28,550.82 : x
  2. Step 2: Convert to fraction form
    87,715.38/131,574.70 = 28,550.82/x
  3. Step 3: Cross multiply
    87,715.38x = 131,574.70 × 28,550.82
  4. Step 4: Simplify right side
    87,715.38x = 3,756,565,576.25
  5. Step 5: Solve for x
    x = 3,756,565,576.25/87,715.38
  6. Step 6: Final answer
    x = 42,826.76

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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.