Home / 90,517.80-135,788.61-33,583.95

Finding the Fourth Proportional to 90,517.80, 135,788.61 and 33,583.95

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Solution

The fourth proportional to 90,517.80, 135,788.61 and 33,583.95 is: 50,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.80 : 135,788.61 = 33,583.95 : x
  2. Step 2: Convert to fraction form
    90,517.80/135,788.61 = 33,583.95/x
  3. Step 3: Cross multiply
    90,517.80x = 135,788.61 × 33,583.95
  4. Step 4: Simplify right side
    90,517.80x = 4,560,317,888.81
  5. Step 5: Solve for x
    x = 4,560,317,888.81/90,517.80
  6. Step 6: Final answer
    x = 50,380.34

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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.