Home / 87,826.82-131,739.92-21,266.89

Finding the Fourth Proportional to 87,826.82, 131,739.92 and 21,266.89

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Solution

The fourth proportional to 87,826.82, 131,739.92 and 21,266.89 is: 31,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,826.82 : 131,739.92 = 21,266.89 : x
  2. Step 2: Convert to fraction form
    87,826.82/131,739.92 = 21,266.89/x
  3. Step 3: Cross multiply
    87,826.82x = 131,739.92 × 21,266.89
  4. Step 4: Simplify right side
    87,826.82x = 2,801,698,031.32
  5. Step 5: Solve for x
    x = 2,801,698,031.32/87,826.82
  6. Step 6: Final answer
    x = 31,900.26

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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.