Home / 54,979.20-82,449.60-28,675.20

Finding the Fourth Proportional to 54,979.20, 82,449.60 and 28,675.20

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Solution

The fourth proportional to 54,979.20, 82,449.60 and 28,675.20 is: 43,002.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979.20 : 82,449.60 = 28,675.20 : x
  2. Step 2: Convert to fraction form
    54,979.20/82,449.60 = 28,675.20/x
  3. Step 3: Cross multiply
    54,979.20x = 82,449.60 × 28,675.20
  4. Step 4: Simplify right side
    54,979.20x = 2,364,258,769.92
  5. Step 5: Solve for x
    x = 2,364,258,769.92/54,979.20
  6. Step 6: Final answer
    x = 43,002.79

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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.