Home / 75,729.96-113,601.12-31,348.44

Finding the Fourth Proportional to 75,729.96, 113,601.12 and 31,348.44

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Solution

The fourth proportional to 75,729.96, 113,601.12 and 31,348.44 is: 47,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,729.96 : 113,601.12 = 31,348.44 : x
  2. Step 2: Convert to fraction form
    75,729.96/113,601.12 = 31,348.44/x
  3. Step 3: Cross multiply
    75,729.96x = 113,601.12 × 31,348.44
  4. Step 4: Simplify right side
    75,729.96x = 3,561,217,894.25
  5. Step 5: Solve for x
    x = 3,561,217,894.25/75,729.96
  6. Step 6: Final answer
    x = 47,025.22

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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.