Home / 79,738.20-119,607.30-53,472.60

Finding the Fourth Proportional to 79,738.20, 119,607.30 and 53,472.60

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Solution

The fourth proportional to 79,738.20, 119,607.30 and 53,472.60 is: 80,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,738.20 : 119,607.30 = 53,472.60 : x
  2. Step 2: Convert to fraction form
    79,738.20/119,607.30 = 53,472.60/x
  3. Step 3: Cross multiply
    79,738.20x = 119,607.30 × 53,472.60
  4. Step 4: Simplify right side
    79,738.20x = 6,395,713,309.98
  5. Step 5: Solve for x
    x = 6,395,713,309.98/79,738.20
  6. Step 6: Final answer
    x = 80,208.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.