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Finding the Fourth Proportional to 79,198, 109,293.44 and 43,388.71

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Solution

The fourth proportional to 79,198, 109,293.44 and 43,388.71 is: 59,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198 : 109,293.44 = 43,388.71 : x
  2. Step 2: Convert to fraction form
    79,198/109,293.44 = 43,388.71/x
  3. Step 3: Cross multiply
    79,198x = 109,293.44 × 43,388.71
  4. Step 4: Simplify right side
    79,198x = 4,742,101,373.06
  5. Step 5: Solve for x
    x = 4,742,101,373.06/79,198
  6. Step 6: Final answer
    x = 59,876.53

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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.