Home / 69,100.08-103,639.78-19,174.92

Finding the Fourth Proportional to 69,100.08, 103,639.78 and 19,174.92

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Solution

The fourth proportional to 69,100.08, 103,639.78 and 19,174.92 is: 28,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,100.08 : 103,639.78 = 19,174.92 : x
  2. Step 2: Convert to fraction form
    69,100.08/103,639.78 = 19,174.92/x
  3. Step 3: Cross multiply
    69,100.08x = 103,639.78 × 19,174.92
  4. Step 4: Simplify right side
    69,100.08x = 1,987,284,490.32
  5. Step 5: Solve for x
    x = 1,987,284,490.32/69,100.08
  6. Step 6: Final answer
    x = 28,759.51

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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.