Home / 82,286.91-123,337.02-37,821.78

Finding the Fourth Proportional to 82,286.91, 123,337.02 and 37,821.78

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Solution

The fourth proportional to 82,286.91, 123,337.02 and 37,821.78 is: 56,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,286.91 : 123,337.02 = 37,821.78 : x
  2. Step 2: Convert to fraction form
    82,286.91/123,337.02 = 37,821.78/x
  3. Step 3: Cross multiply
    82,286.91x = 123,337.02 × 37,821.78
  4. Step 4: Simplify right side
    82,286.91x = 4,664,825,636.30
  5. Step 5: Solve for x
    x = 4,664,825,636.30/82,286.91
  6. Step 6: Final answer
    x = 56,689.77

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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.