Home / 54,765.09-82,087.38-21,478.95

Finding the Fourth Proportional to 54,765.09, 82,087.38 and 21,478.95

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Solution

The fourth proportional to 54,765.09, 82,087.38 and 21,478.95 is: 32,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,765.09 : 82,087.38 = 21,478.95 : x
  2. Step 2: Convert to fraction form
    54,765.09/82,087.38 = 21,478.95/x
  3. Step 3: Cross multiply
    54,765.09x = 82,087.38 × 21,478.95
  4. Step 4: Simplify right side
    54,765.09x = 1,763,150,730.65
  5. Step 5: Solve for x
    x = 1,763,150,730.65/54,765.09
  6. Step 6: Final answer
    x = 32,194.79

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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.