Home / 84,247.38-126,328.82-28,067.74

Finding the Fourth Proportional to 84,247.38, 126,328.82 and 28,067.74

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Solution

The fourth proportional to 84,247.38, 126,328.82 and 28,067.74 is: 42,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,247.38 : 126,328.82 = 28,067.74 : x
  2. Step 2: Convert to fraction form
    84,247.38/126,328.82 = 28,067.74/x
  3. Step 3: Cross multiply
    84,247.38x = 126,328.82 × 28,067.74
  4. Step 4: Simplify right side
    84,247.38x = 3,545,764,474.27
  5. Step 5: Solve for x
    x = 3,545,764,474.27/84,247.38
  6. Step 6: Final answer
    x = 42,087.53

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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.