Home / 69,434.55-95,819.40-39,218.31

Finding the Fourth Proportional to 69,434.55, 95,819.40 and 39,218.31

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Solution

The fourth proportional to 69,434.55, 95,819.40 and 39,218.31 is: 54,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,434.55 : 95,819.40 = 39,218.31 : x
  2. Step 2: Convert to fraction form
    69,434.55/95,819.40 = 39,218.31/x
  3. Step 3: Cross multiply
    69,434.55x = 95,819.40 × 39,218.31
  4. Step 4: Simplify right side
    69,434.55x = 3,757,874,933.21
  5. Step 5: Solve for x
    x = 3,757,874,933.21/69,434.55
  6. Step 6: Final answer
    x = 54,121.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.