Home / 69,334.62-103,985.94-19,418.24

Finding the Fourth Proportional to 69,334.62, 103,985.94 and 19,418.24

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Solution

The fourth proportional to 69,334.62, 103,985.94 and 19,418.24 is: 29,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,334.62 : 103,985.94 = 19,418.24 : x
  2. Step 2: Convert to fraction form
    69,334.62/103,985.94 = 19,418.24/x
  3. Step 3: Cross multiply
    69,334.62x = 103,985.94 × 19,418.24
  4. Step 4: Simplify right side
    69,334.62x = 2,019,223,939.55
  5. Step 5: Solve for x
    x = 2,019,223,939.55/69,334.62
  6. Step 6: Final answer
    x = 29,122.88

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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.