Home / 49,520.62-74,280.12-12,080.73

Finding the Fourth Proportional to 49,520.62, 74,280.12 and 12,080.73

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Solution

The fourth proportional to 49,520.62, 74,280.12 and 12,080.73 is: 18,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,520.62 : 74,280.12 = 12,080.73 : x
  2. Step 2: Convert to fraction form
    49,520.62/74,280.12 = 12,080.73/x
  3. Step 3: Cross multiply
    49,520.62x = 74,280.12 × 12,080.73
  4. Step 4: Simplify right side
    49,520.62x = 897,358,074.09
  5. Step 5: Solve for x
    x = 897,358,074.09/49,520.62
  6. Step 6: Final answer
    x = 18,120.90

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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.