Home / 84,912.22-127,360.50-28,745.91

Finding the Fourth Proportional to 84,912.22, 127,360.50 and 28,745.91

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Solution

The fourth proportional to 84,912.22, 127,360.50 and 28,745.91 is: 43,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,912.22 : 127,360.50 = 28,745.91 : x
  2. Step 2: Convert to fraction form
    84,912.22/127,360.50 = 28,745.91/x
  3. Step 3: Cross multiply
    84,912.22x = 127,360.50 × 28,745.91
  4. Step 4: Simplify right side
    84,912.22x = 3,661,093,470.56
  5. Step 5: Solve for x
    x = 3,661,093,470.56/84,912.22
  6. Step 6: Final answer
    x = 43,116.21

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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.