Home / 48,216.74-72,336.66-20,121.16

Finding the Fourth Proportional to 48,216.74, 72,336.66 and 20,121.16

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Solution

The fourth proportional to 48,216.74, 72,336.66 and 20,121.16 is: 30,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,216.74 : 72,336.66 = 20,121.16 : x
  2. Step 2: Convert to fraction form
    48,216.74/72,336.66 = 20,121.16/x
  3. Step 3: Cross multiply
    48,216.74x = 72,336.66 × 20,121.16
  4. Step 4: Simplify right side
    48,216.74x = 1,455,497,589.96
  5. Step 5: Solve for x
    x = 1,455,497,589.96/48,216.74
  6. Step 6: Final answer
    x = 30,186.56

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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.