Home / 74,589.21-111,883.86-51,144.57

Finding the Fourth Proportional to 74,589.21, 111,883.86 and 51,144.57

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Solution

The fourth proportional to 74,589.21, 111,883.86 and 51,144.57 is: 76,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,589.21 : 111,883.86 = 51,144.57 : x
  2. Step 2: Convert to fraction form
    74,589.21/111,883.86 = 51,144.57/x
  3. Step 3: Cross multiply
    74,589.21x = 111,883.86 × 51,144.57
  4. Step 4: Simplify right side
    74,589.21x = 5,722,251,909.64
  5. Step 5: Solve for x
    x = 5,722,251,909.64/74,589.21
  6. Step 6: Final answer
    x = 76,716.89

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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.