Home / 75,577.39-113,378.97-31,179.85

Finding the Fourth Proportional to 75,577.39, 113,378.97 and 31,179.85

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Solution

The fourth proportional to 75,577.39, 113,378.97 and 31,179.85 is: 46,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,577.39 : 113,378.97 = 31,179.85 : x
  2. Step 2: Convert to fraction form
    75,577.39/113,378.97 = 31,179.85/x
  3. Step 3: Cross multiply
    75,577.39x = 113,378.97 × 31,179.85
  4. Step 4: Simplify right side
    75,577.39x = 3,535,139,277.75
  5. Step 5: Solve for x
    x = 3,535,139,277.75/75,577.39
  6. Step 6: Final answer
    x = 46,775.09

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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.