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Finding the Fourth Proportional to 88,488.36, 132,730.92 and 21,928.64

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Solution

The fourth proportional to 88,488.36, 132,730.92 and 21,928.64 is: 32,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,488.36 : 132,730.92 = 21,928.64 : x
  2. Step 2: Convert to fraction form
    88,488.36/132,730.92 = 21,928.64/x
  3. Step 3: Cross multiply
    88,488.36x = 132,730.92 × 21,928.64
  4. Step 4: Simplify right side
    88,488.36x = 2,910,608,561.55
  5. Step 5: Solve for x
    x = 2,910,608,561.55/88,488.36
  6. Step 6: Final answer
    x = 32,892.56

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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.