Home / 79,439.16-109,627.36-43,632.48

Finding the Fourth Proportional to 79,439.16, 109,627.36 and 43,632.48

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Solution

The fourth proportional to 79,439.16, 109,627.36 and 43,632.48 is: 60,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439.16 : 109,627.36 = 43,632.48 : x
  2. Step 2: Convert to fraction form
    79,439.16/109,627.36 = 43,632.48/x
  3. Step 3: Cross multiply
    79,439.16x = 109,627.36 × 43,632.48
  4. Step 4: Simplify right side
    79,439.16x = 4,783,313,592.65
  5. Step 5: Solve for x
    x = 4,783,313,592.65/79,439.16
  6. Step 6: Final answer
    x = 60,213.55

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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.