Home / 75,939.88-113,867.16-31,536.76

Finding the Fourth Proportional to 75,939.88, 113,867.16 and 31,536.76

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Solution

The fourth proportional to 75,939.88, 113,867.16 and 31,536.76 is: 47,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,939.88 : 113,867.16 = 31,536.76 : x
  2. Step 2: Convert to fraction form
    75,939.88/113,867.16 = 31,536.76/x
  3. Step 3: Cross multiply
    75,939.88x = 113,867.16 × 31,536.76
  4. Step 4: Simplify right side
    75,939.88x = 3,591,001,296.80
  5. Step 5: Solve for x
    x = 3,591,001,296.80/75,939.88
  6. Step 6: Final answer
    x = 47,287.42

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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.