Home / 79,122.72-109,185.84-43,313.44

Finding the Fourth Proportional to 79,122.72, 109,185.84 and 43,313.44

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Solution

The fourth proportional to 79,122.72, 109,185.84 and 43,313.44 is: 59,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.72 : 109,185.84 = 43,313.44 : x
  2. Step 2: Convert to fraction form
    79,122.72/109,185.84 = 43,313.44/x
  3. Step 3: Cross multiply
    79,122.72x = 109,185.84 × 43,313.44
  4. Step 4: Simplify right side
    79,122.72x = 4,729,214,329.69
  5. Step 5: Solve for x
    x = 4,729,214,329.69/79,122.72
  6. Step 6: Final answer
    x = 59,770.62

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1.5x scale

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.