Home / 55,443.26-83,162.19-20,380.70

Finding the Fourth Proportional to 55,443.26, 83,162.19 and 20,380.70

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Solution

The fourth proportional to 55,443.26, 83,162.19 and 20,380.70 is: 30,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,443.26 : 83,162.19 = 20,380.70 : x
  2. Step 2: Convert to fraction form
    55,443.26/83,162.19 = 20,380.70/x
  3. Step 3: Cross multiply
    55,443.26x = 83,162.19 × 20,380.70
  4. Step 4: Simplify right side
    55,443.26x = 1,694,903,645.73
  5. Step 5: Solve for x
    x = 1,694,903,645.73/55,443.26
  6. Step 6: Final answer
    x = 30,570.06

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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.