Home / 79,205.45-109,243.49-50,533.88

Finding the Fourth Proportional to 79,205.45, 109,243.49 and 50,533.88

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Solution

The fourth proportional to 79,205.45, 109,243.49 and 50,533.88 is: 69,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,205.45 : 109,243.49 = 50,533.88 : x
  2. Step 2: Convert to fraction form
    79,205.45/109,243.49 = 50,533.88/x
  3. Step 3: Cross multiply
    79,205.45x = 109,243.49 × 50,533.88
  4. Step 4: Simplify right side
    79,205.45x = 5,520,496,615.55
  5. Step 5: Solve for x
    x = 5,520,496,615.55/79,205.45
  6. Step 6: Final answer
    x = 69,698.45

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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.