Home / 87,825.88-131,739.18-21,265.93

Finding the Fourth Proportional to 87,825.88, 131,739.18 and 21,265.93

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Solution

The fourth proportional to 87,825.88, 131,739.18 and 21,265.93 is: 31,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.88 : 131,739.18 = 21,265.93 : x
  2. Step 2: Convert to fraction form
    87,825.88/131,739.18 = 21,265.93/x
  3. Step 3: Cross multiply
    87,825.88x = 131,739.18 × 21,265.93
  4. Step 4: Simplify right side
    87,825.88x = 2,801,556,180.14
  5. Step 5: Solve for x
    x = 2,801,556,180.14/87,825.88
  6. Step 6: Final answer
    x = 31,898.98

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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.