Home / 75,642.89-113,311.44-38,150.82

Finding the Fourth Proportional to 75,642.89, 113,311.44 and 38,150.82

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Solution

The fourth proportional to 75,642.89, 113,311.44 and 38,150.82 is: 57,149.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,642.89 : 113,311.44 = 38,150.82 : x
  2. Step 2: Convert to fraction form
    75,642.89/113,311.44 = 38,150.82/x
  3. Step 3: Cross multiply
    75,642.89x = 113,311.44 × 38,150.82
  4. Step 4: Simplify right side
    75,642.89x = 4,322,924,351.38
  5. Step 5: Solve for x
    x = 4,322,924,351.38/75,642.89
  6. Step 6: Final answer
    x = 57,149.12

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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.