Home / 90,046.20-135,069.30-27,708.60

Finding the Fourth Proportional to 90,046.20, 135,069.30 and 27,708.60

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Solution

The fourth proportional to 90,046.20, 135,069.30 and 27,708.60 is: 41,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,046.20 : 135,069.30 = 27,708.60 : x
  2. Step 2: Convert to fraction form
    90,046.20/135,069.30 = 27,708.60/x
  3. Step 3: Cross multiply
    90,046.20x = 135,069.30 × 27,708.60
  4. Step 4: Simplify right side
    90,046.20x = 3,742,581,205.98
  5. Step 5: Solve for x
    x = 3,742,581,205.98/90,046.20
  6. Step 6: Final answer
    x = 41,562.90

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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.