Home / 82,434.20-123,609.90-40,317.44

Finding the Fourth Proportional to 82,434.20, 123,609.90 and 40,317.44

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Solution

The fourth proportional to 82,434.20, 123,609.90 and 40,317.44 is: 60,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,434.20 : 123,609.90 = 40,317.44 : x
  2. Step 2: Convert to fraction form
    82,434.20/123,609.90 = 40,317.44/x
  3. Step 3: Cross multiply
    82,434.20x = 123,609.90 × 40,317.44
  4. Step 4: Simplify right side
    82,434.20x = 4,983,634,726.66
  5. Step 5: Solve for x
    x = 4,983,634,726.66/82,434.20
  6. Step 6: Final answer
    x = 60,455.91

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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.