Home / 79,288.94-109,420.30-43,479.03

Finding the Fourth Proportional to 79,288.94, 109,420.30 and 43,479.03

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Solution

The fourth proportional to 79,288.94, 109,420.30 and 43,479.03 is: 60,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,288.94 : 109,420.30 = 43,479.03 : x
  2. Step 2: Convert to fraction form
    79,288.94/109,420.30 = 43,479.03/x
  3. Step 3: Cross multiply
    79,288.94x = 109,420.30 × 43,479.03
  4. Step 4: Simplify right side
    79,288.94x = 4,757,488,355.49
  5. Step 5: Solve for x
    x = 4,757,488,355.49/79,288.94
  6. Step 6: Final answer
    x = 60,001.91

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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.