Home / 87,563.97-131,322.02-31,393.64

Finding the Fourth Proportional to 87,563.97, 131,322.02 and 31,393.64

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Solution

The fourth proportional to 87,563.97, 131,322.02 and 31,393.64 is: 47,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.97 : 131,322.02 = 31,393.64 : x
  2. Step 2: Convert to fraction form
    87,563.97/131,322.02 = 31,393.64/x
  3. Step 3: Cross multiply
    87,563.97x = 131,322.02 × 31,393.64
  4. Step 4: Simplify right side
    87,563.97x = 4,122,676,219.95
  5. Step 5: Solve for x
    x = 4,122,676,219.95/87,563.97
  6. Step 6: Final answer
    x = 47,081.88

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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.