Home / 79,512.72-109,728.68-43,706.04

Finding the Fourth Proportional to 79,512.72, 109,728.68 and 43,706.04

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Solution

The fourth proportional to 79,512.72, 109,728.68 and 43,706.04 is: 60,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.72 : 109,728.68 = 43,706.04 : x
  2. Step 2: Convert to fraction form
    79,512.72/109,728.68 = 43,706.04/x
  3. Step 3: Cross multiply
    79,512.72x = 109,728.68 × 43,706.04
  4. Step 4: Simplify right side
    79,512.72x = 4,795,806,077.23
  5. Step 5: Solve for x
    x = 4,795,806,077.23/79,512.72
  6. Step 6: Final answer
    x = 60,314.95

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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.