Home / 76,259.94-114,375.86-31,874.78

Finding the Fourth Proportional to 76,259.94, 114,375.86 and 31,874.78

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Solution

The fourth proportional to 76,259.94, 114,375.86 and 31,874.78 is: 47,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,259.94 : 114,375.86 = 31,874.78 : x
  2. Step 2: Convert to fraction form
    76,259.94/114,375.86 = 31,874.78/x
  3. Step 3: Cross multiply
    76,259.94x = 114,375.86 × 31,874.78
  4. Step 4: Simplify right side
    76,259.94x = 3,645,705,374.81
  5. Step 5: Solve for x
    x = 3,645,705,374.81/76,259.94
  6. Step 6: Final answer
    x = 47,806.30

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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.