Home / 69,278.22-103,917.38-16,687.76

Finding the Fourth Proportional to 69,278.22, 103,917.38 and 16,687.76

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Solution

The fourth proportional to 69,278.22, 103,917.38 and 16,687.76 is: 25,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,278.22 : 103,917.38 = 16,687.76 : x
  2. Step 2: Convert to fraction form
    69,278.22/103,917.38 = 16,687.76/x
  3. Step 3: Cross multiply
    69,278.22x = 103,917.38 × 16,687.76
  4. Step 4: Simplify right side
    69,278.22x = 1,734,147,694.24
  5. Step 5: Solve for x
    x = 1,734,147,694.24/69,278.22
  6. Step 6: Final answer
    x = 25,031.64

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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.