Home / 79,136.44-109,204.14-43,319.59

Finding the Fourth Proportional to 79,136.44, 109,204.14 and 43,319.59

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Solution

The fourth proportional to 79,136.44, 109,204.14 and 43,319.59 is: 59,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.44 : 109,204.14 = 43,319.59 : x
  2. Step 2: Convert to fraction form
    79,136.44/109,204.14 = 43,319.59/x
  3. Step 3: Cross multiply
    79,136.44x = 109,204.14 × 43,319.59
  4. Step 4: Simplify right side
    79,136.44x = 4,730,678,571.10
  5. Step 5: Solve for x
    x = 4,730,678,571.10/79,136.44
  6. Step 6: Final answer
    x = 59,778.76

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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.