Home / 79,286.75-109,415.61-43,477.36

Finding the Fourth Proportional to 79,286.75, 109,415.61 and 43,477.36

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Solution

The fourth proportional to 79,286.75, 109,415.61 and 43,477.36 is: 59,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,286.75 : 109,415.61 = 43,477.36 : x
  2. Step 2: Convert to fraction form
    79,286.75/109,415.61 = 43,477.36/x
  3. Step 3: Cross multiply
    79,286.75x = 109,415.61 × 43,477.36
  4. Step 4: Simplify right side
    79,286.75x = 4,757,101,592.05
  5. Step 5: Solve for x
    x = 4,757,101,592.05/79,286.75
  6. Step 6: Final answer
    x = 59,998.70

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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.