Home / 69,431.38-104,007.62-31,939.32

Finding the Fourth Proportional to 69,431.38, 104,007.62 and 31,939.32

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Solution

The fourth proportional to 69,431.38, 104,007.62 and 31,939.32 is: 47,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,431.38 : 104,007.62 = 31,939.32 : x
  2. Step 2: Convert to fraction form
    69,431.38/104,007.62 = 31,939.32/x
  3. Step 3: Cross multiply
    69,431.38x = 104,007.62 × 31,939.32
  4. Step 4: Simplify right side
    69,431.38x = 3,321,932,657.62
  5. Step 5: Solve for x
    x = 3,321,932,657.62/69,431.38
  6. Step 6: Final answer
    x = 47,844.83

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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.