Home / 69,279.41-103,919.33-19,359.18

Finding the Fourth Proportional to 69,279.41, 103,919.33 and 19,359.18

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Solution

The fourth proportional to 69,279.41, 103,919.33 and 19,359.18 is: 29,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,279.41 : 103,919.33 = 19,359.18 : x
  2. Step 2: Convert to fraction form
    69,279.41/103,919.33 = 19,359.18/x
  3. Step 3: Cross multiply
    69,279.41x = 103,919.33 × 19,359.18
  4. Step 4: Simplify right side
    69,279.41x = 2,011,793,063.35
  5. Step 5: Solve for x
    x = 2,011,793,063.35/69,279.41
  6. Step 6: Final answer
    x = 29,038.83

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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.