Home / 45,296.35-67,936.78-12,019.78

Finding the Fourth Proportional to 45,296.35, 67,936.78 and 12,019.78

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Solution

The fourth proportional to 45,296.35, 67,936.78 and 12,019.78 is: 18,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,296.35 : 67,936.78 = 12,019.78 : x
  2. Step 2: Convert to fraction form
    45,296.35/67,936.78 = 12,019.78/x
  3. Step 3: Cross multiply
    45,296.35x = 67,936.78 × 12,019.78
  4. Step 4: Simplify right side
    45,296.35x = 816,584,799.70
  5. Step 5: Solve for x
    x = 816,584,799.70/45,296.35
  6. Step 6: Final answer
    x = 18,027.61

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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.