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Finding the Fourth Proportional to 68,043.08, 101,976.60 and 36,419.60

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Solution

The fourth proportional to 68,043.08, 101,976.60 and 36,419.60 is: 54,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,043.08 : 101,976.60 = 36,419.60 : x
  2. Step 2: Convert to fraction form
    68,043.08/101,976.60 = 36,419.60/x
  3. Step 3: Cross multiply
    68,043.08x = 101,976.60 × 36,419.60
  4. Step 4: Simplify right side
    68,043.08x = 3,713,946,981.36
  5. Step 5: Solve for x
    x = 3,713,946,981.36/68,043.08
  6. Step 6: Final answer
    x = 54,582.29

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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.