Home / 83,840.22-125,711.64-33,879.42

Finding the Fourth Proportional to 83,840.22, 125,711.64 and 33,879.42

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Solution

The fourth proportional to 83,840.22, 125,711.64 and 33,879.42 is: 50,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,840.22 : 125,711.64 = 33,879.42 : x
  2. Step 2: Convert to fraction form
    83,840.22/125,711.64 = 33,879.42/x
  3. Step 3: Cross multiply
    83,840.22x = 125,711.64 × 33,879.42
  4. Step 4: Simplify right side
    83,840.22x = 4,259,037,450.45
  5. Step 5: Solve for x
    x = 4,259,037,450.45/83,840.22
  6. Step 6: Final answer
    x = 50,799.45

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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.