Home / 87,826.88-131,740.68-21,266.93

Finding the Fourth Proportional to 87,826.88, 131,740.68 and 21,266.93

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Solution

The fourth proportional to 87,826.88, 131,740.68 and 21,266.93 is: 31,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,826.88 : 131,740.68 = 21,266.93 : x
  2. Step 2: Convert to fraction form
    87,826.88/131,740.68 = 21,266.93/x
  3. Step 3: Cross multiply
    87,826.88x = 131,740.68 × 21,266.93
  4. Step 4: Simplify right side
    87,826.88x = 2,801,719,819.71
  5. Step 5: Solve for x
    x = 2,801,719,819.71/87,826.88
  6. Step 6: Final answer
    x = 31,900.48

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1.5x scale

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.