Home / 69,029.76-103,546.96-19,105.68

Finding the Fourth Proportional to 69,029.76, 103,546.96 and 19,105.68

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Solution

The fourth proportional to 69,029.76, 103,546.96 and 19,105.68 is: 28,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,029.76 : 103,546.96 = 19,105.68 : x
  2. Step 2: Convert to fraction form
    69,029.76/103,546.96 = 19,105.68/x
  3. Step 3: Cross multiply
    69,029.76x = 103,546.96 × 19,105.68
  4. Step 4: Simplify right side
    69,029.76x = 1,978,335,082.73
  5. Step 5: Solve for x
    x = 1,978,335,082.73/69,029.76
  6. Step 6: Final answer
    x = 28,659.16

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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.