Home / 54,811.08-82,221.38-19,269.36

Finding the Fourth Proportional to 54,811.08, 82,221.38 and 19,269.36

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Solution

The fourth proportional to 54,811.08, 82,221.38 and 19,269.36 is: 28,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,811.08 : 82,221.38 = 19,269.36 : x
  2. Step 2: Convert to fraction form
    54,811.08/82,221.38 = 19,269.36/x
  3. Step 3: Cross multiply
    54,811.08x = 82,221.38 × 19,269.36
  4. Step 4: Simplify right side
    54,811.08x = 1,584,353,370.92
  5. Step 5: Solve for x
    x = 1,584,353,370.92/54,811.08
  6. Step 6: Final answer
    x = 28,905.71

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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.