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Finding the Fourth Proportional to 89,841.60, 123,982.04 and 49,556.48

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Solution

The fourth proportional to 89,841.60, 123,982.04 and 49,556.48 is: 68,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,841.60 : 123,982.04 = 49,556.48 : x
  2. Step 2: Convert to fraction form
    89,841.60/123,982.04 = 49,556.48/x
  3. Step 3: Cross multiply
    89,841.60x = 123,982.04 × 49,556.48
  4. Step 4: Simplify right side
    89,841.60x = 6,144,113,485.62
  5. Step 5: Solve for x
    x = 6,144,113,485.62/89,841.60
  6. Step 6: Final answer
    x = 68,388.29

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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.