Home / 81,886.22-122,829.39-22,721.95

Finding the Fourth Proportional to 81,886.22, 122,829.39 and 22,721.95

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Solution

The fourth proportional to 81,886.22, 122,829.39 and 22,721.95 is: 34,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,886.22 : 122,829.39 = 22,721.95 : x
  2. Step 2: Convert to fraction form
    81,886.22/122,829.39 = 22,721.95/x
  3. Step 3: Cross multiply
    81,886.22x = 122,829.39 × 22,721.95
  4. Step 4: Simplify right side
    81,886.22x = 2,790,922,656.83
  5. Step 5: Solve for x
    x = 2,790,922,656.83/81,886.22
  6. Step 6: Final answer
    x = 34,082.93

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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.