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Finding the Fourth Proportional to 54,383.64, 81,587.88 and 19,323.24

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Solution

The fourth proportional to 54,383.64, 81,587.88 and 19,323.24 is: 28,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,383.64 : 81,587.88 = 19,323.24 : x
  2. Step 2: Convert to fraction form
    54,383.64/81,587.88 = 19,323.24/x
  3. Step 3: Cross multiply
    54,383.64x = 81,587.88 × 19,323.24
  4. Step 4: Simplify right side
    54,383.64x = 1,576,542,186.33
  5. Step 5: Solve for x
    x = 1,576,542,186.33/54,383.64
  6. Step 6: Final answer
    x = 28,989.27

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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.