Home / 87,826.58-131,740.20-21,266.61

Finding the Fourth Proportional to 87,826.58, 131,740.20 and 21,266.61

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Solution

The fourth proportional to 87,826.58, 131,740.20 and 21,266.61 is: 31,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,826.58 : 131,740.20 = 21,266.61 : x
  2. Step 2: Convert to fraction form
    87,826.58/131,740.20 = 21,266.61/x
  3. Step 3: Cross multiply
    87,826.58x = 131,740.20 × 21,266.61
  4. Step 4: Simplify right side
    87,826.58x = 2,801,667,454.72
  5. Step 5: Solve for x
    x = 2,801,667,454.72/87,826.58
  6. Step 6: Final answer
    x = 31,900.00

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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.