Home / 54,828.11-82,249.69-19,281.30

Finding the Fourth Proportional to 54,828.11, 82,249.69 and 19,281.30

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Solution

The fourth proportional to 54,828.11, 82,249.69 and 19,281.30 is: 28,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,828.11 : 82,249.69 = 19,281.30 : x
  2. Step 2: Convert to fraction form
    54,828.11/82,249.69 = 19,281.30/x
  3. Step 3: Cross multiply
    54,828.11x = 82,249.69 × 19,281.30
  4. Step 4: Simplify right side
    54,828.11x = 1,585,880,947.80
  5. Step 5: Solve for x
    x = 1,585,880,947.80/54,828.11
  6. Step 6: Final answer
    x = 28,924.60

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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.