Home / 54,425.32-81,631.82-18,880.09

Finding the Fourth Proportional to 54,425.32, 81,631.82 and 18,880.09

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Solution

The fourth proportional to 54,425.32, 81,631.82 and 18,880.09 is: 28,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,425.32 : 81,631.82 = 18,880.09 : x
  2. Step 2: Convert to fraction form
    54,425.32/81,631.82 = 18,880.09/x
  3. Step 3: Cross multiply
    54,425.32x = 81,631.82 × 18,880.09
  4. Step 4: Simplify right side
    54,425.32x = 1,541,215,951.58
  5. Step 5: Solve for x
    x = 1,541,215,951.58/54,425.32
  6. Step 6: Final answer
    x = 28,318.00

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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.