Home / 87,974.26-131,959.54-21,414.76

Finding the Fourth Proportional to 87,974.26, 131,959.54 and 21,414.76

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Solution

The fourth proportional to 87,974.26, 131,959.54 and 21,414.76 is: 32,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,974.26 : 131,959.54 = 21,414.76 : x
  2. Step 2: Convert to fraction form
    87,974.26/131,959.54 = 21,414.76/x
  3. Step 3: Cross multiply
    87,974.26x = 131,959.54 × 21,414.76
  4. Step 4: Simplify right side
    87,974.26x = 2,825,881,878.81
  5. Step 5: Solve for x
    x = 2,825,881,878.81/87,974.26
  6. Step 6: Final answer
    x = 32,121.69

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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.