Home / 74,490.82-111,815.80-30,146.56

Finding the Fourth Proportional to 74,490.82, 111,815.80 and 30,146.56

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Solution

The fourth proportional to 74,490.82, 111,815.80 and 30,146.56 is: 45,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,490.82 : 111,815.80 = 30,146.56 : x
  2. Step 2: Convert to fraction form
    74,490.82/111,815.80 = 30,146.56/x
  3. Step 3: Cross multiply
    74,490.82x = 111,815.80 × 30,146.56
  4. Step 4: Simplify right side
    74,490.82x = 3,370,861,723.65
  5. Step 5: Solve for x
    x = 3,370,861,723.65/74,490.82
  6. Step 6: Final answer
    x = 45,252.04

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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.