Home / 75,431.66-113,162.09-25,519.89

Finding the Fourth Proportional to 75,431.66, 113,162.09 and 25,519.89

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Solution

The fourth proportional to 75,431.66, 113,162.09 and 25,519.89 is: 38,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.66 : 113,162.09 = 25,519.89 : x
  2. Step 2: Convert to fraction form
    75,431.66/113,162.09 = 25,519.89/x
  3. Step 3: Cross multiply
    75,431.66x = 113,162.09 × 25,519.89
  4. Step 4: Simplify right side
    75,431.66x = 2,887,883,961.37
  5. Step 5: Solve for x
    x = 2,887,883,961.37/75,431.66
  6. Step 6: Final answer
    x = 38,284.78

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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.