Home / 87,520.70-131,313.45-28,358.30

Finding the Fourth Proportional to 87,520.70, 131,313.45 and 28,358.30

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Solution

The fourth proportional to 87,520.70, 131,313.45 and 28,358.30 is: 42,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,520.70 : 131,313.45 = 28,358.30 : x
  2. Step 2: Convert to fraction form
    87,520.70/131,313.45 = 28,358.30/x
  3. Step 3: Cross multiply
    87,520.70x = 131,313.45 × 28,358.30
  4. Step 4: Simplify right side
    87,520.70x = 3,723,826,209.14
  5. Step 5: Solve for x
    x = 3,723,826,209.14/87,520.70
  6. Step 6: Final answer
    x = 42,547.95

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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.