Home / 83,997.58-125,993.22-20,817.91

Finding the Fourth Proportional to 83,997.58, 125,993.22 and 20,817.91

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Solution

The fourth proportional to 83,997.58, 125,993.22 and 20,817.91 is: 31,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,997.58 : 125,993.22 = 20,817.91 : x
  2. Step 2: Convert to fraction form
    83,997.58/125,993.22 = 20,817.91/x
  3. Step 3: Cross multiply
    83,997.58x = 125,993.22 × 20,817.91
  4. Step 4: Simplify right side
    83,997.58x = 2,622,915,514.57
  5. Step 5: Solve for x
    x = 2,622,915,514.57/83,997.58
  6. Step 6: Final answer
    x = 31,226.08

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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.