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Finding the Fourth Proportional to 54,940.32, 82,444.32 and 21,654.72

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Solution

The fourth proportional to 54,940.32, 82,444.32 and 21,654.72 is: 32,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,940.32 : 82,444.32 = 21,654.72 : x
  2. Step 2: Convert to fraction form
    54,940.32/82,444.32 = 21,654.72/x
  3. Step 3: Cross multiply
    54,940.32x = 82,444.32 × 21,654.72
  4. Step 4: Simplify right side
    54,940.32x = 1,785,308,665.19
  5. Step 5: Solve for x
    x = 1,785,308,665.19/54,940.32
  6. Step 6: Final answer
    x = 32,495.42

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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.