Home / 87,643.20-131,370-34,994.80

Finding the Fourth Proportional to 87,643.20, 131,370 and 34,994.80

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Solution

The fourth proportional to 87,643.20, 131,370 and 34,994.80 is: 52,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,643.20 : 131,370 = 34,994.80 : x
  2. Step 2: Convert to fraction form
    87,643.20/131,370 = 34,994.80/x
  3. Step 3: Cross multiply
    87,643.20x = 131,370 × 34,994.80
  4. Step 4: Simplify right side
    87,643.20x = 4,597,266,876
  5. Step 5: Solve for x
    x = 4,597,266,876/87,643.20
  6. Step 6: Final answer
    x = 52,454.35

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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.