Home / 75,940.88-113,868.66-31,537.76

Finding the Fourth Proportional to 75,940.88, 113,868.66 and 31,537.76

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Solution

The fourth proportional to 75,940.88, 113,868.66 and 31,537.76 is: 47,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,940.88 : 113,868.66 = 31,537.76 : x
  2. Step 2: Convert to fraction form
    75,940.88/113,868.66 = 31,537.76/x
  3. Step 3: Cross multiply
    75,940.88x = 113,868.66 × 31,537.76
  4. Step 4: Simplify right side
    75,940.88x = 3,591,162,470.60
  5. Step 5: Solve for x
    x = 3,591,162,470.60/75,940.88
  6. Step 6: Final answer
    x = 47,288.92

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1.5x scale

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.