Home / 48,738.05-73,109.64-13,680.44

Finding the Fourth Proportional to 48,738.05, 73,109.64 and 13,680.44

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Solution

The fourth proportional to 48,738.05, 73,109.64 and 13,680.44 is: 20,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,738.05 : 73,109.64 = 13,680.44 : x
  2. Step 2: Convert to fraction form
    48,738.05/73,109.64 = 13,680.44/x
  3. Step 3: Cross multiply
    48,738.05x = 73,109.64 × 13,680.44
  4. Step 4: Simplify right side
    48,738.05x = 1,000,171,677.89
  5. Step 5: Solve for x
    x = 1,000,171,677.89/48,738.05
  6. Step 6: Final answer
    x = 20,521.37

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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.