Home / 47,843.34-71,768.25-12,786.54

Finding the Fourth Proportional to 47,843.34, 71,768.25 and 12,786.54

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Solution

The fourth proportional to 47,843.34, 71,768.25 and 12,786.54 is: 19,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,843.34 : 71,768.25 = 12,786.54 : x
  2. Step 2: Convert to fraction form
    47,843.34/71,768.25 = 12,786.54/x
  3. Step 3: Cross multiply
    47,843.34x = 71,768.25 × 12,786.54
  4. Step 4: Simplify right side
    47,843.34x = 917,667,599.36
  5. Step 5: Solve for x
    x = 917,667,599.36/47,843.34
  6. Step 6: Final answer
    x = 19,180.68

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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.