Home / 79,844.28-119,766.90-20,675.88

Finding the Fourth Proportional to 79,844.28, 119,766.90 and 20,675.88

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Solution

The fourth proportional to 79,844.28, 119,766.90 and 20,675.88 is: 31,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,844.28 : 119,766.90 = 20,675.88 : x
  2. Step 2: Convert to fraction form
    79,844.28/119,766.90 = 20,675.88/x
  3. Step 3: Cross multiply
    79,844.28x = 119,766.90 × 20,675.88
  4. Step 4: Simplify right side
    79,844.28x = 2,476,286,052.37
  5. Step 5: Solve for x
    x = 2,476,286,052.37/79,844.28
  6. Step 6: Final answer
    x = 31,013.94

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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.