Home / 69,103.32-103,654.92-19,183.38

Finding the Fourth Proportional to 69,103.32, 103,654.92 and 19,183.38

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Solution

The fourth proportional to 69,103.32, 103,654.92 and 19,183.38 is: 28,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,103.32 : 103,654.92 = 19,183.38 : x
  2. Step 2: Convert to fraction form
    69,103.32/103,654.92 = 19,183.38/x
  3. Step 3: Cross multiply
    69,103.32x = 103,654.92 × 19,183.38
  4. Step 4: Simplify right side
    69,103.32x = 1,988,451,719.23
  5. Step 5: Solve for x
    x = 1,988,451,719.23/69,103.32
  6. Step 6: Final answer
    x = 28,775.05

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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.