Home / 87,563.22-131,320.90-31,392.89

Finding the Fourth Proportional to 87,563.22, 131,320.90 and 31,392.89

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Solution

The fourth proportional to 87,563.22, 131,320.90 and 31,392.89 is: 47,080.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.22 : 131,320.90 = 31,392.89 : x
  2. Step 2: Convert to fraction form
    87,563.22/131,320.90 = 31,392.89/x
  3. Step 3: Cross multiply
    87,563.22x = 131,320.90 × 31,392.89
  4. Step 4: Simplify right side
    87,563.22x = 4,122,542,896.70
  5. Step 5: Solve for x
    x = 4,122,542,896.70/87,563.22
  6. Step 6: Final answer
    x = 47,080.76

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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.