Home / 81,452.82-122,198.36-25,290.03

Finding the Fourth Proportional to 81,452.82, 122,198.36 and 25,290.03

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Solution

The fourth proportional to 81,452.82, 122,198.36 and 25,290.03 is: 37,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,452.82 : 122,198.36 = 25,290.03 : x
  2. Step 2: Convert to fraction form
    81,452.82/122,198.36 = 25,290.03/x
  3. Step 3: Cross multiply
    81,452.82x = 122,198.36 × 25,290.03
  4. Step 4: Simplify right side
    81,452.82x = 3,090,400,063.90
  5. Step 5: Solve for x
    x = 3,090,400,063.90/81,452.82
  6. Step 6: Final answer
    x = 37,940.98

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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.