Home / 87,400.20-131,128.06-36,825.96

Finding the Fourth Proportional to 87,400.20, 131,128.06 and 36,825.96

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Solution

The fourth proportional to 87,400.20, 131,128.06 and 36,825.96 is: 55,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,400.20 : 131,128.06 = 36,825.96 : x
  2. Step 2: Convert to fraction form
    87,400.20/131,128.06 = 36,825.96/x
  3. Step 3: Cross multiply
    87,400.20x = 131,128.06 × 36,825.96
  4. Step 4: Simplify right side
    87,400.20x = 4,828,916,692.44
  5. Step 5: Solve for x
    x = 4,828,916,692.44/87,400.20
  6. Step 6: Final answer
    x = 55,250.64

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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.