Home / 73,179.42-109,776.44-19,872.27

Finding the Fourth Proportional to 73,179.42, 109,776.44 and 19,872.27

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Solution

The fourth proportional to 73,179.42, 109,776.44 and 19,872.27 is: 29,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,179.42 : 109,776.44 = 19,872.27 : x
  2. Step 2: Convert to fraction form
    73,179.42/109,776.44 = 19,872.27/x
  3. Step 3: Cross multiply
    73,179.42x = 109,776.44 × 19,872.27
  4. Step 4: Simplify right side
    73,179.42x = 2,181,507,049.11
  5. Step 5: Solve for x
    x = 2,181,507,049.11/73,179.42
  6. Step 6: Final answer
    x = 29,810.39

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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.