Home / 81,450.82-122,195.36-25,288.03

Finding the Fourth Proportional to 81,450.82, 122,195.36 and 25,288.03

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Solution

The fourth proportional to 81,450.82, 122,195.36 and 25,288.03 is: 37,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,450.82 : 122,195.36 = 25,288.03 : x
  2. Step 2: Convert to fraction form
    81,450.82/122,195.36 = 25,288.03/x
  3. Step 3: Cross multiply
    81,450.82x = 122,195.36 × 25,288.03
  4. Step 4: Simplify right side
    81,450.82x = 3,090,079,929.54
  5. Step 5: Solve for x
    x = 3,090,079,929.54/81,450.82
  6. Step 6: Final answer
    x = 37,937.98

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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.