Home / 90,080.88-135,121.32-23,520.96

Finding the Fourth Proportional to 90,080.88, 135,121.32 and 23,520.96

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Solution

The fourth proportional to 90,080.88, 135,121.32 and 23,520.96 is: 35,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,080.88 : 135,121.32 = 23,520.96 : x
  2. Step 2: Convert to fraction form
    90,080.88/135,121.32 = 23,520.96/x
  3. Step 3: Cross multiply
    90,080.88x = 135,121.32 × 23,520.96
  4. Step 4: Simplify right side
    90,080.88x = 3,178,183,162.87
  5. Step 5: Solve for x
    x = 3,178,183,162.87/90,080.88
  6. Step 6: Final answer
    x = 35,281.44

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1.5x scale

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.