Home / 68,585.52-94,660.12-40,291.20

Finding the Fourth Proportional to 68,585.52, 94,660.12 and 40,291.20

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Solution

The fourth proportional to 68,585.52, 94,660.12 and 40,291.20 is: 55,608.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,585.52 : 94,660.12 = 40,291.20 : x
  2. Step 2: Convert to fraction form
    68,585.52/94,660.12 = 40,291.20/x
  3. Step 3: Cross multiply
    68,585.52x = 94,660.12 × 40,291.20
  4. Step 4: Simplify right side
    68,585.52x = 3,813,969,826.94
  5. Step 5: Solve for x
    x = 3,813,969,826.94/68,585.52
  6. Step 6: Final answer
    x = 55,608.97

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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.