Home / 69,631.85-104,452.21-19,715.88

Finding the Fourth Proportional to 69,631.85, 104,452.21 and 19,715.88

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Solution

The fourth proportional to 69,631.85, 104,452.21 and 19,715.88 is: 29,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,631.85 : 104,452.21 = 19,715.88 : x
  2. Step 2: Convert to fraction form
    69,631.85/104,452.21 = 19,715.88/x
  3. Step 3: Cross multiply
    69,631.85x = 104,452.21 × 19,715.88
  4. Step 4: Simplify right side
    69,631.85x = 2,059,367,238.09
  5. Step 5: Solve for x
    x = 2,059,367,238.09/69,631.85
  6. Step 6: Final answer
    x = 29,575.08

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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.