Home / 69,279.90-103,919.86-16,689.36

Finding the Fourth Proportional to 69,279.90, 103,919.86 and 16,689.36

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Solution

The fourth proportional to 69,279.90, 103,919.86 and 16,689.36 is: 25,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,279.90 : 103,919.86 = 16,689.36 : x
  2. Step 2: Convert to fraction form
    69,279.90/103,919.86 = 16,689.36/x
  3. Step 3: Cross multiply
    69,279.90x = 103,919.86 × 16,689.36
  4. Step 4: Simplify right side
    69,279.90x = 1,734,355,954.69
  5. Step 5: Solve for x
    x = 1,734,355,954.69/69,279.90
  6. Step 6: Final answer
    x = 25,034.04

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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.