Home / 68,456.80-94,470.42-40,162.60

Finding the Fourth Proportional to 68,456.80, 94,470.42 and 40,162.60

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Solution

The fourth proportional to 68,456.80, 94,470.42 and 40,162.60 is: 55,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,456.80 : 94,470.42 = 40,162.60 : x
  2. Step 2: Convert to fraction form
    68,456.80/94,470.42 = 40,162.60/x
  3. Step 3: Cross multiply
    68,456.80x = 94,470.42 × 40,162.60
  4. Step 4: Simplify right side
    68,456.80x = 3,794,177,690.29
  5. Step 5: Solve for x
    x = 3,794,177,690.29/68,456.80
  6. Step 6: Final answer
    x = 55,424.41

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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.