Home / 75,540.24-113,338.32-31,170.87

Finding the Fourth Proportional to 75,540.24, 113,338.32 and 31,170.87

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Solution

The fourth proportional to 75,540.24, 113,338.32 and 31,170.87 is: 46,767.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.24 : 113,338.32 = 31,170.87 : x
  2. Step 2: Convert to fraction form
    75,540.24/113,338.32 = 31,170.87/x
  3. Step 3: Cross multiply
    75,540.24x = 113,338.32 × 31,170.87
  4. Step 4: Simplify right side
    75,540.24x = 3,532,854,038.74
  5. Step 5: Solve for x
    x = 3,532,854,038.74/75,540.24
  6. Step 6: Final answer
    x = 46,767.84

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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.