Home / 69,067.55-103,591.07-19,142.45

Finding the Fourth Proportional to 69,067.55, 103,591.07 and 19,142.45

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Solution

The fourth proportional to 69,067.55, 103,591.07 and 19,142.45 is: 28,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,067.55 : 103,591.07 = 19,142.45 : x
  2. Step 2: Convert to fraction form
    69,067.55/103,591.07 = 19,142.45/x
  3. Step 3: Cross multiply
    69,067.55x = 103,591.07 × 19,142.45
  4. Step 4: Simplify right side
    69,067.55x = 1,982,986,264.25
  5. Step 5: Solve for x
    x = 1,982,986,264.25/69,067.55
  6. Step 6: Final answer
    x = 28,710.83

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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.