Home / 87,317.63-120,498.48-49,591.88

Finding the Fourth Proportional to 87,317.63, 120,498.48 and 49,591.88

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Solution

The fourth proportional to 87,317.63, 120,498.48 and 49,591.88 is: 68,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,317.63 : 120,498.48 = 49,591.88 : x
  2. Step 2: Convert to fraction form
    87,317.63/120,498.48 = 49,591.88/x
  3. Step 3: Cross multiply
    87,317.63x = 120,498.48 × 49,591.88
  4. Step 4: Simplify right side
    87,317.63x = 5,975,745,557.85
  5. Step 5: Solve for x
    x = 5,975,745,557.85/87,317.63
  6. Step 6: Final answer
    x = 68,436.88

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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.