Home / 75,544.20-113,219.10-45,930.60

Finding the Fourth Proportional to 75,544.20, 113,219.10 and 45,930.60

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Solution

The fourth proportional to 75,544.20, 113,219.10 and 45,930.60 is: 68,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,544.20 : 113,219.10 = 45,930.60 : x
  2. Step 2: Convert to fraction form
    75,544.20/113,219.10 = 45,930.60/x
  3. Step 3: Cross multiply
    75,544.20x = 113,219.10 × 45,930.60
  4. Step 4: Simplify right side
    75,544.20x = 5,200,221,194.46
  5. Step 5: Solve for x
    x = 5,200,221,194.46/75,544.20
  6. Step 6: Final answer
    x = 68,836.80

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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.