Home / 87,451.66-120,672.21-49,726.72

Finding the Fourth Proportional to 87,451.66, 120,672.21 and 49,726.72

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Solution

The fourth proportional to 87,451.66, 120,672.21 and 49,726.72 is: 68,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,451.66 : 120,672.21 = 49,726.72 : x
  2. Step 2: Convert to fraction form
    87,451.66/120,672.21 = 49,726.72/x
  3. Step 3: Cross multiply
    87,451.66x = 120,672.21 × 49,726.72
  4. Step 4: Simplify right side
    87,451.66x = 6,000,633,198.45
  5. Step 5: Solve for x
    x = 6,000,633,198.45/87,451.66
  6. Step 6: Final answer
    x = 68,616.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.