Home / 72,744.44-109,118.46-20,154.38

Finding the Fourth Proportional to 72,744.44, 109,118.46 and 20,154.38

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Solution

The fourth proportional to 72,744.44, 109,118.46 and 20,154.38 is: 30,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744.44 : 109,118.46 = 20,154.38 : x
  2. Step 2: Convert to fraction form
    72,744.44/109,118.46 = 20,154.38/x
  3. Step 3: Cross multiply
    72,744.44x = 109,118.46 × 20,154.38
  4. Step 4: Simplify right side
    72,744.44x = 2,199,214,907.85
  5. Step 5: Solve for x
    x = 2,199,214,907.85/72,744.44
  6. Step 6: Final answer
    x = 30,232.07

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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.