Home / 81,622.20-122,390.82-29,024.04

Finding the Fourth Proportional to 81,622.20, 122,390.82 and 29,024.04

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Solution

The fourth proportional to 81,622.20, 122,390.82 and 29,024.04 is: 43,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,622.20 : 122,390.82 = 29,024.04 : x
  2. Step 2: Convert to fraction form
    81,622.20/122,390.82 = 29,024.04/x
  3. Step 3: Cross multiply
    81,622.20x = 122,390.82 × 29,024.04
  4. Step 4: Simplify right side
    81,622.20x = 3,552,276,055.31
  5. Step 5: Solve for x
    x = 3,552,276,055.31/81,622.20
  6. Step 6: Final answer
    x = 43,520.95

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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.