Home / 69,334.92-103,986.32-19,418.54

Finding the Fourth Proportional to 69,334.92, 103,986.32 and 19,418.54

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Solution

The fourth proportional to 69,334.92, 103,986.32 and 19,418.54 is: 29,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,334.92 : 103,986.32 = 19,418.54 : x
  2. Step 2: Convert to fraction form
    69,334.92/103,986.32 = 19,418.54/x
  3. Step 3: Cross multiply
    69,334.92x = 103,986.32 × 19,418.54
  4. Step 4: Simplify right side
    69,334.92x = 2,019,261,897.35
  5. Step 5: Solve for x
    x = 2,019,261,897.35/69,334.92
  6. Step 6: Final answer
    x = 29,123.30

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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.