Home / 55,755.19-83,634.68-20,198.62

Finding the Fourth Proportional to 55,755.19, 83,634.68 and 20,198.62

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Solution

The fourth proportional to 55,755.19, 83,634.68 and 20,198.62 is: 30,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,755.19 : 83,634.68 = 20,198.62 : x
  2. Step 2: Convert to fraction form
    55,755.19/83,634.68 = 20,198.62/x
  3. Step 3: Cross multiply
    55,755.19x = 83,634.68 × 20,198.62
  4. Step 4: Simplify right side
    55,755.19x = 1,689,305,120.14
  5. Step 5: Solve for x
    x = 1,689,305,120.14/55,755.19
  6. Step 6: Final answer
    x = 30,298.62

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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.