Home / 75,540.15-113,759.91-65,797.11

Finding the Fourth Proportional to 75,540.15, 113,759.91 and 65,797.11

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Solution

The fourth proportional to 75,540.15, 113,759.91 and 65,797.11 is: 99,087.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.15 : 113,759.91 = 65,797.11 : x
  2. Step 2: Convert to fraction form
    75,540.15/113,759.91 = 65,797.11/x
  3. Step 3: Cross multiply
    75,540.15x = 113,759.91 × 65,797.11
  4. Step 4: Simplify right side
    75,540.15x = 7,485,073,311.86
  5. Step 5: Solve for x
    x = 7,485,073,311.86/75,540.15
  6. Step 6: Final answer
    x = 99,087.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.