Home / 76,084.94-114,167.20-31,139.66

Finding the Fourth Proportional to 76,084.94, 114,167.20 and 31,139.66

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Solution

The fourth proportional to 76,084.94, 114,167.20 and 31,139.66 is: 46,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,084.94 : 114,167.20 = 31,139.66 : x
  2. Step 2: Convert to fraction form
    76,084.94/114,167.20 = 31,139.66/x
  3. Step 3: Cross multiply
    76,084.94x = 114,167.20 × 31,139.66
  4. Step 4: Simplify right side
    76,084.94x = 3,555,127,791.15
  5. Step 5: Solve for x
    x = 3,555,127,791.15/76,084.94
  6. Step 6: Final answer
    x = 46,725.78

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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.