Home / 87,671.66-131,479.49-28,493.06

Finding the Fourth Proportional to 87,671.66, 131,479.49 and 28,493.06

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Solution

The fourth proportional to 87,671.66, 131,479.49 and 28,493.06 is: 42,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,671.66 : 131,479.49 = 28,493.06 : x
  2. Step 2: Convert to fraction form
    87,671.66/131,479.49 = 28,493.06/x
  3. Step 3: Cross multiply
    87,671.66x = 131,479.49 × 28,493.06
  4. Step 4: Simplify right side
    87,671.66x = 3,746,252,197.48
  5. Step 5: Solve for x
    x = 3,746,252,197.48/87,671.66
  6. Step 6: Final answer
    x = 42,730.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.