Home / 55,163.84-82,758.18-20,103.62

Finding the Fourth Proportional to 55,163.84, 82,758.18 and 20,103.62

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Solution

The fourth proportional to 55,163.84, 82,758.18 and 20,103.62 is: 30,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.84 : 82,758.18 = 20,103.62 : x
  2. Step 2: Convert to fraction form
    55,163.84/82,758.18 = 20,103.62/x
  3. Step 3: Cross multiply
    55,163.84x = 82,758.18 × 20,103.62
  4. Step 4: Simplify right side
    55,163.84x = 1,663,739,002.61
  5. Step 5: Solve for x
    x = 1,663,739,002.61/55,163.84
  6. Step 6: Final answer
    x = 30,159.96

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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.