Home / 87,636.94-120,950.63-49,403.73

Finding the Fourth Proportional to 87,636.94, 120,950.63 and 49,403.73

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Solution

The fourth proportional to 87,636.94, 120,950.63 and 49,403.73 is: 68,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.94 : 120,950.63 = 49,403.73 : x
  2. Step 2: Convert to fraction form
    87,636.94/120,950.63 = 49,403.73/x
  3. Step 3: Cross multiply
    87,636.94x = 120,950.63 × 49,403.73
  4. Step 4: Simplify right side
    87,636.94x = 5,975,412,267.85
  5. Step 5: Solve for x
    x = 5,975,412,267.85/87,636.94
  6. Step 6: Final answer
    x = 68,183.72

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1.5x scale

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.