Home / 75,500.25-113,167.29-31,102.78

Finding the Fourth Proportional to 75,500.25, 113,167.29 and 31,102.78

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Solution

The fourth proportional to 75,500.25, 113,167.29 and 31,102.78 is: 46,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,500.25 : 113,167.29 = 31,102.78 : x
  2. Step 2: Convert to fraction form
    75,500.25/113,167.29 = 31,102.78/x
  3. Step 3: Cross multiply
    75,500.25x = 113,167.29 × 31,102.78
  4. Step 4: Simplify right side
    75,500.25x = 3,519,817,324.07
  5. Step 5: Solve for x
    x = 3,519,817,324.07/75,500.25
  6. Step 6: Final answer
    x = 46,619.94

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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.