Home / 54,355.20-81,516.96-28,068

Finding the Fourth Proportional to 54,355.20, 81,516.96 and 28,068

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Solution

The fourth proportional to 54,355.20, 81,516.96 and 28,068 is: 42,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,355.20 : 81,516.96 = 28,068 : x
  2. Step 2: Convert to fraction form
    54,355.20/81,516.96 = 28,068/x
  3. Step 3: Cross multiply
    54,355.20x = 81,516.96 × 28,068
  4. Step 4: Simplify right side
    54,355.20x = 2,288,018,033.28
  5. Step 5: Solve for x
    x = 2,288,018,033.28/54,355.20
  6. Step 6: Final answer
    x = 42,093.82

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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.