Home / 87,825.07-131,758.56-28,660.85

Finding the Fourth Proportional to 87,825.07, 131,758.56 and 28,660.85

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Solution

The fourth proportional to 87,825.07, 131,758.56 and 28,660.85 is: 42,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.07 : 131,758.56 = 28,660.85 : x
  2. Step 2: Convert to fraction form
    87,825.07/131,758.56 = 28,660.85/x
  3. Step 3: Cross multiply
    87,825.07x = 131,758.56 × 28,660.85
  4. Step 4: Simplify right side
    87,825.07x = 3,776,312,324.38
  5. Step 5: Solve for x
    x = 3,776,312,324.38/87,825.07
  6. Step 6: Final answer
    x = 42,998.11

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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.