Home / 54,511.20-81,761.68-18,964.02

Finding the Fourth Proportional to 54,511.20, 81,761.68 and 18,964.02

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Solution

The fourth proportional to 54,511.20, 81,761.68 and 18,964.02 is: 28,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,511.20 : 81,761.68 = 18,964.02 : x
  2. Step 2: Convert to fraction form
    54,511.20/81,761.68 = 18,964.02/x
  3. Step 3: Cross multiply
    54,511.20x = 81,761.68 × 18,964.02
  4. Step 4: Simplify right side
    54,511.20x = 1,550,530,411.73
  5. Step 5: Solve for x
    x = 1,550,530,411.73/54,511.20
  6. Step 6: Final answer
    x = 28,444.25

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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.