Home / 48,311.40-72,620.70-45,546.60

Finding the Fourth Proportional to 48,311.40, 72,620.70 and 45,546.60

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Solution

The fourth proportional to 48,311.40, 72,620.70 and 45,546.60 is: 68,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,311.40 : 72,620.70 = 45,546.60 : x
  2. Step 2: Convert to fraction form
    48,311.40/72,620.70 = 45,546.60/x
  3. Step 3: Cross multiply
    48,311.40x = 72,620.70 × 45,546.60
  4. Step 4: Simplify right side
    48,311.40x = 3,307,625,974.62
  5. Step 5: Solve for x
    x = 3,307,625,974.62/48,311.40
  6. Step 6: Final answer
    x = 68,464.71

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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.