Home / 48,148.62-72,231.97-21,855.21

Finding the Fourth Proportional to 48,148.62, 72,231.97 and 21,855.21

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Solution

The fourth proportional to 48,148.62, 72,231.97 and 21,855.21 is: 32,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,148.62 : 72,231.97 = 21,855.21 : x
  2. Step 2: Convert to fraction form
    48,148.62/72,231.97 = 21,855.21/x
  3. Step 3: Cross multiply
    48,148.62x = 72,231.97 × 21,855.21
  4. Step 4: Simplify right side
    48,148.62x = 1,578,644,511.90
  5. Step 5: Solve for x
    x = 1,578,644,511.90/48,148.62
  6. Step 6: Final answer
    x = 32,786.91

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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.