Home / 83,811.37-125,704.75-33,890.36

Finding the Fourth Proportional to 83,811.37, 125,704.75 and 33,890.36

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Solution

The fourth proportional to 83,811.37, 125,704.75 and 33,890.36 is: 50,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,811.37 : 125,704.75 = 33,890.36 : x
  2. Step 2: Convert to fraction form
    83,811.37/125,704.75 = 33,890.36/x
  3. Step 3: Cross multiply
    83,811.37x = 125,704.75 × 33,890.36
  4. Step 4: Simplify right side
    83,811.37x = 4,260,179,231.21
  5. Step 5: Solve for x
    x = 4,260,179,231.21/83,811.37
  6. Step 6: Final answer
    x = 50,830.56

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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.