Home / 75,611.72-113,286.08-53,074.56

Finding the Fourth Proportional to 75,611.72, 113,286.08 and 53,074.56

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Solution

The fourth proportional to 75,611.72, 113,286.08 and 53,074.56 is: 79,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,611.72 : 113,286.08 = 53,074.56 : x
  2. Step 2: Convert to fraction form
    75,611.72/113,286.08 = 53,074.56/x
  3. Step 3: Cross multiply
    75,611.72x = 113,286.08 × 53,074.56
  4. Step 4: Simplify right side
    75,611.72x = 6,012,608,850.12
  5. Step 5: Solve for x
    x = 6,012,608,850.12/75,611.72
  6. Step 6: Final answer
    x = 79,519.54

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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.