Home / 87,451.66-120,682.74-49,725.91

Finding the Fourth Proportional to 87,451.66, 120,682.74 and 49,725.91

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Solution

The fourth proportional to 87,451.66, 120,682.74 and 49,725.91 is: 68,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,451.66 : 120,682.74 = 49,725.91 : x
  2. Step 2: Convert to fraction form
    87,451.66/120,682.74 = 49,725.91/x
  3. Step 3: Cross multiply
    87,451.66x = 120,682.74 × 49,725.91
  4. Step 4: Simplify right side
    87,451.66x = 6,001,059,067.79
  5. Step 5: Solve for x
    x = 6,001,059,067.79/87,451.66
  6. Step 6: Final answer
    x = 68,621.44

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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.