Home / 87,836.32-131,760.96-31,709.80

Finding the Fourth Proportional to 87,836.32, 131,760.96 and 31,709.80

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Solution

The fourth proportional to 87,836.32, 131,760.96 and 31,709.80 is: 47,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.32 : 131,760.96 = 31,709.80 : x
  2. Step 2: Convert to fraction form
    87,836.32/131,760.96 = 31,709.80/x
  3. Step 3: Cross multiply
    87,836.32x = 131,760.96 × 31,709.80
  4. Step 4: Simplify right side
    87,836.32x = 4,178,113,689.41
  5. Step 5: Solve for x
    x = 4,178,113,689.41/87,836.32
  6. Step 6: Final answer
    x = 47,567.04

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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.