Home / 76,251.60-114,364.44-20,834.64

Finding the Fourth Proportional to 76,251.60, 114,364.44 and 20,834.64

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Solution

The fourth proportional to 76,251.60, 114,364.44 and 20,834.64 is: 31,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,251.60 : 114,364.44 = 20,834.64 : x
  2. Step 2: Convert to fraction form
    76,251.60/114,364.44 = 20,834.64/x
  3. Step 3: Cross multiply
    76,251.60x = 114,364.44 × 20,834.64
  4. Step 4: Simplify right side
    76,251.60x = 2,382,741,936.20
  5. Step 5: Solve for x
    x = 2,382,741,936.20/76,251.60
  6. Step 6: Final answer
    x = 31,248.42

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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.