Home / 49,311.32-74,019.62-21,245.29

Finding the Fourth Proportional to 49,311.32, 74,019.62 and 21,245.29

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Solution

The fourth proportional to 49,311.32, 74,019.62 and 21,245.29 is: 31,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,311.32 : 74,019.62 = 21,245.29 : x
  2. Step 2: Convert to fraction form
    49,311.32/74,019.62 = 21,245.29/x
  3. Step 3: Cross multiply
    49,311.32x = 74,019.62 × 21,245.29
  4. Step 4: Simplify right side
    49,311.32x = 1,572,568,160.65
  5. Step 5: Solve for x
    x = 1,572,568,160.65/49,311.32
  6. Step 6: Final answer
    x = 31,890.61

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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.