Home / 87,940.77-131,939.40-28,762.98

Finding the Fourth Proportional to 87,940.77, 131,939.40 and 28,762.98

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Solution

The fourth proportional to 87,940.77, 131,939.40 and 28,762.98 is: 43,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.77 : 131,939.40 = 28,762.98 : x
  2. Step 2: Convert to fraction form
    87,940.77/131,939.40 = 28,762.98/x
  3. Step 3: Cross multiply
    87,940.77x = 131,939.40 × 28,762.98
  4. Step 4: Simplify right side
    87,940.77x = 3,794,970,323.41
  5. Step 5: Solve for x
    x = 3,794,970,323.41/87,940.77
  6. Step 6: Final answer
    x = 43,153.71

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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.