Home / 87,868.99-131,776.24-31,701.80

Finding the Fourth Proportional to 87,868.99, 131,776.24 and 31,701.80

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Solution

The fourth proportional to 87,868.99, 131,776.24 and 31,701.80 is: 47,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.99 : 131,776.24 = 31,701.80 : x
  2. Step 2: Convert to fraction form
    87,868.99/131,776.24 = 31,701.80/x
  3. Step 3: Cross multiply
    87,868.99x = 131,776.24 × 31,701.80
  4. Step 4: Simplify right side
    87,868.99x = 4,177,543,846.72
  5. Step 5: Solve for x
    x = 4,177,543,846.72/87,868.99
  6. Step 6: Final answer
    x = 47,542.87

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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.