Home / 84,865.21-127,311.59-28,708.73

Finding the Fourth Proportional to 84,865.21, 127,311.59 and 28,708.73

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Solution

The fourth proportional to 84,865.21, 127,311.59 and 28,708.73 is: 43,067.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,865.21 : 127,311.59 = 28,708.73 : x
  2. Step 2: Convert to fraction form
    84,865.21/127,311.59 = 28,708.73/x
  3. Step 3: Cross multiply
    84,865.21x = 127,311.59 × 28,708.73
  4. Step 4: Simplify right side
    84,865.21x = 3,654,954,237.92
  5. Step 5: Solve for x
    x = 3,654,954,237.92/84,865.21
  6. Step 6: Final answer
    x = 43,067.76

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1.5x scale

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.