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Finding the Fourth Proportional to 88,578.47, 122,240.61 and 54,609.39

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Solution

The fourth proportional to 88,578.47, 122,240.61 and 54,609.39 is: 75,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,578.47 : 122,240.61 = 54,609.39 : x
  2. Step 2: Convert to fraction form
    88,578.47/122,240.61 = 54,609.39/x
  3. Step 3: Cross multiply
    88,578.47x = 122,240.61 × 54,609.39
  4. Step 4: Simplify right side
    88,578.47x = 6,675,485,145.33
  5. Step 5: Solve for x
    x = 6,675,485,145.33/88,578.47
  6. Step 6: Final answer
    x = 75,362.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.