Home / 54,998.20-82,519.62-19,940.68

Finding the Fourth Proportional to 54,998.20, 82,519.62 and 19,940.68

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Solution

The fourth proportional to 54,998.20, 82,519.62 and 19,940.68 is: 29,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,998.20 : 82,519.62 = 19,940.68 : x
  2. Step 2: Convert to fraction form
    54,998.20/82,519.62 = 19,940.68/x
  3. Step 3: Cross multiply
    54,998.20x = 82,519.62 × 19,940.68
  4. Step 4: Simplify right side
    54,998.20x = 1,645,497,336.14
  5. Step 5: Solve for x
    x = 1,645,497,336.14/54,998.20
  6. Step 6: Final answer
    x = 29,919.11

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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.