Home / 69,764.36-104,644.24-30,321.54

Finding the Fourth Proportional to 69,764.36, 104,644.24 and 30,321.54

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Solution

The fourth proportional to 69,764.36, 104,644.24 and 30,321.54 is: 45,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,764.36 : 104,644.24 = 30,321.54 : x
  2. Step 2: Convert to fraction form
    69,764.36/104,644.24 = 30,321.54/x
  3. Step 3: Cross multiply
    69,764.36x = 104,644.24 × 30,321.54
  4. Step 4: Simplify right side
    69,764.36x = 3,172,974,433.13
  5. Step 5: Solve for x
    x = 3,172,974,433.13/69,764.36
  6. Step 6: Final answer
    x = 45,481.31

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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.