Home / 45,480.60-68,219.42-12,198.92

Finding the Fourth Proportional to 45,480.60, 68,219.42 and 12,198.92

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Solution

The fourth proportional to 45,480.60, 68,219.42 and 12,198.92 is: 18,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,480.60 : 68,219.42 = 12,198.92 : x
  2. Step 2: Convert to fraction form
    45,480.60/68,219.42 = 12,198.92/x
  3. Step 3: Cross multiply
    45,480.60x = 68,219.42 × 12,198.92
  4. Step 4: Simplify right side
    45,480.60x = 832,202,844.93
  5. Step 5: Solve for x
    x = 832,202,844.93/45,480.60
  6. Step 6: Final answer
    x = 18,297.97

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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.