Home / 48,738.40-73,136.30-20,656.41

Finding the Fourth Proportional to 48,738.40, 73,136.30 and 20,656.41

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Solution

The fourth proportional to 48,738.40, 73,136.30 and 20,656.41 is: 30,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,738.40 : 73,136.30 = 20,656.41 : x
  2. Step 2: Convert to fraction form
    48,738.40/73,136.30 = 20,656.41/x
  3. Step 3: Cross multiply
    48,738.40x = 73,136.30 × 20,656.41
  4. Step 4: Simplify right side
    48,738.40x = 1,510,733,398.68
  5. Step 5: Solve for x
    x = 1,510,733,398.68/48,738.40
  6. Step 6: Final answer
    x = 30,996.78

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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.