Home / 87,054.82-120,149.09-48,829.84

Finding the Fourth Proportional to 87,054.82, 120,149.09 and 48,829.84

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Solution

The fourth proportional to 87,054.82, 120,149.09 and 48,829.84 is: 67,392.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.82 : 120,149.09 = 48,829.84 : x
  2. Step 2: Convert to fraction form
    87,054.82/120,149.09 = 48,829.84/x
  3. Step 3: Cross multiply
    87,054.82x = 120,149.09 × 48,829.84
  4. Step 4: Simplify right side
    87,054.82x = 5,866,860,479.44
  5. Step 5: Solve for x
    x = 5,866,860,479.44/87,054.82
  6. Step 6: Final answer
    x = 67,392.71

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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.