Home / 81,634.62-112,660.82-54,363.95

Finding the Fourth Proportional to 81,634.62, 112,660.82 and 54,363.95

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Solution

The fourth proportional to 81,634.62, 112,660.82 and 54,363.95 is: 75,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,634.62 : 112,660.82 = 54,363.95 : x
  2. Step 2: Convert to fraction form
    81,634.62/112,660.82 = 54,363.95/x
  3. Step 3: Cross multiply
    81,634.62x = 112,660.82 × 54,363.95
  4. Step 4: Simplify right side
    81,634.62x = 6,124,686,350.32
  5. Step 5: Solve for x
    x = 6,124,686,350.32/81,634.62
  6. Step 6: Final answer
    x = 75,025.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.