Home / 48,621.99-72,961.68-20,540.22

Finding the Fourth Proportional to 48,621.99, 72,961.68 and 20,540.22

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Solution

The fourth proportional to 48,621.99, 72,961.68 and 20,540.22 is: 30,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621.99 : 72,961.68 = 20,540.22 : x
  2. Step 2: Convert to fraction form
    48,621.99/72,961.68 = 20,540.22/x
  3. Step 3: Cross multiply
    48,621.99x = 72,961.68 × 20,540.22
  4. Step 4: Simplify right side
    48,621.99x = 1,498,648,958.77
  5. Step 5: Solve for x
    x = 1,498,648,958.77/48,621.99
  6. Step 6: Final answer
    x = 30,822.45

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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.