Home / 36,143.78-54,205.25-12,450.36

Finding the Fourth Proportional to 36,143.78, 54,205.25 and 12,450.36

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Solution

The fourth proportional to 36,143.78, 54,205.25 and 12,450.36 is: 18,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.78 : 54,205.25 = 12,450.36 : x
  2. Step 2: Convert to fraction form
    36,143.78/54,205.25 = 12,450.36/x
  3. Step 3: Cross multiply
    36,143.78x = 54,205.25 × 12,450.36
  4. Step 4: Simplify right side
    36,143.78x = 674,874,814.14
  5. Step 5: Solve for x
    x = 674,874,814.14/36,143.78
  6. Step 6: Final answer
    x = 18,671.95

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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.