Home / 82,874.19-124,311.20-20,544.69

Finding the Fourth Proportional to 82,874.19, 124,311.20 and 20,544.69

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Solution

The fourth proportional to 82,874.19, 124,311.20 and 20,544.69 is: 30,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,874.19 : 124,311.20 = 20,544.69 : x
  2. Step 2: Convert to fraction form
    82,874.19/124,311.20 = 20,544.69/x
  3. Step 3: Cross multiply
    82,874.19x = 124,311.20 × 20,544.69
  4. Step 4: Simplify right side
    82,874.19x = 2,553,934,964.80
  5. Step 5: Solve for x
    x = 2,553,934,964.80/82,874.19
  6. Step 6: Final answer
    x = 30,817.01

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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.