Home / 87,805.20-131,704.60-35,200.40

Finding the Fourth Proportional to 87,805.20, 131,704.60 and 35,200.40

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Solution

The fourth proportional to 87,805.20, 131,704.60 and 35,200.40 is: 52,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.20 : 131,704.60 = 35,200.40 : x
  2. Step 2: Convert to fraction form
    87,805.20/131,704.60 = 35,200.40/x
  3. Step 3: Cross multiply
    87,805.20x = 131,704.60 × 35,200.40
  4. Step 4: Simplify right side
    87,805.20x = 4,636,054,601.84
  5. Step 5: Solve for x
    x = 4,636,054,601.84/87,805.20
  6. Step 6: Final answer
    x = 52,799.32

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1.5x scale

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.