Home / 40,490.54-60,721.20-17,118.80

Finding the Fourth Proportional to 40,490.54, 60,721.20 and 17,118.80

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Solution

The fourth proportional to 40,490.54, 60,721.20 and 17,118.80 is: 25,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.54 : 60,721.20 = 17,118.80 : x
  2. Step 2: Convert to fraction form
    40,490.54/60,721.20 = 17,118.80/x
  3. Step 3: Cross multiply
    40,490.54x = 60,721.20 × 17,118.80
  4. Step 4: Simplify right side
    40,490.54x = 1,039,474,078.56
  5. Step 5: Solve for x
    x = 1,039,474,078.56/40,490.54
  6. Step 6: Final answer
    x = 25,672.02

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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.