Home / 72,855.08-109,245.02-33,378.36

Finding the Fourth Proportional to 72,855.08, 109,245.02 and 33,378.36

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Solution

The fourth proportional to 72,855.08, 109,245.02 and 33,378.36 is: 50,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,855.08 : 109,245.02 = 33,378.36 : x
  2. Step 2: Convert to fraction form
    72,855.08/109,245.02 = 33,378.36/x
  3. Step 3: Cross multiply
    72,855.08x = 109,245.02 × 33,378.36
  4. Step 4: Simplify right side
    72,855.08x = 3,646,419,605.77
  5. Step 5: Solve for x
    x = 3,646,419,605.77/72,855.08
  6. Step 6: Final answer
    x = 50,050.31

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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.