Home / 40,440.20-60,660.30-31,983.80

Finding the Fourth Proportional to 40,440.20, 60,660.30 and 31,983.80

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Solution

The fourth proportional to 40,440.20, 60,660.30 and 31,983.80 is: 47,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,440.20 : 60,660.30 = 31,983.80 : x
  2. Step 2: Convert to fraction form
    40,440.20/60,660.30 = 31,983.80/x
  3. Step 3: Cross multiply
    40,440.20x = 60,660.30 × 31,983.80
  4. Step 4: Simplify right side
    40,440.20x = 1,940,146,903.14
  5. Step 5: Solve for x
    x = 1,940,146,903.14/40,440.20
  6. Step 6: Final answer
    x = 47,975.70

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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.