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Finding the Fourth Proportional to 89,456.40, 134,067.96 and 36,806.40

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Solution

The fourth proportional to 89,456.40, 134,067.96 and 36,806.40 is: 55,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,456.40 : 134,067.96 = 36,806.40 : x
  2. Step 2: Convert to fraction form
    89,456.40/134,067.96 = 36,806.40/x
  3. Step 3: Cross multiply
    89,456.40x = 134,067.96 × 36,806.40
  4. Step 4: Simplify right side
    89,456.40x = 4,934,558,962.94
  5. Step 5: Solve for x
    x = 4,934,558,962.94/89,456.40
  6. Step 6: Final answer
    x = 55,161.61

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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.