Home / 81,638.46-122,454.36-22,472.51

Finding the Fourth Proportional to 81,638.46, 122,454.36 and 22,472.51

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Solution

The fourth proportional to 81,638.46, 122,454.36 and 22,472.51 is: 33,707.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,638.46 : 122,454.36 = 22,472.51 : x
  2. Step 2: Convert to fraction form
    81,638.46/122,454.36 = 22,472.51/x
  3. Step 3: Cross multiply
    81,638.46x = 122,454.36 × 22,472.51
  4. Step 4: Simplify right side
    81,638.46x = 2,751,856,217.37
  5. Step 5: Solve for x
    x = 2,751,856,217.37/81,638.46
  6. Step 6: Final answer
    x = 33,707.84

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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.