Home / 48,311.20-72,497.20-20,608.80

Finding the Fourth Proportional to 48,311.20, 72,497.20 and 20,608.80

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Solution

The fourth proportional to 48,311.20, 72,497.20 and 20,608.80 is: 30,926.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,311.20 : 72,497.20 = 20,608.80 : x
  2. Step 2: Convert to fraction form
    48,311.20/72,497.20 = 20,608.80/x
  3. Step 3: Cross multiply
    48,311.20x = 72,497.20 × 20,608.80
  4. Step 4: Simplify right side
    48,311.20x = 1,494,080,295.36
  5. Step 5: Solve for x
    x = 1,494,080,295.36/48,311.20
  6. Step 6: Final answer
    x = 30,926.17

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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.