Home / 87,780.30-131,669.85-35,189.04

Finding the Fourth Proportional to 87,780.30, 131,669.85 and 35,189.04

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Solution

The fourth proportional to 87,780.30, 131,669.85 and 35,189.04 is: 52,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,780.30 : 131,669.85 = 35,189.04 : x
  2. Step 2: Convert to fraction form
    87,780.30/131,669.85 = 35,189.04/x
  3. Step 3: Cross multiply
    87,780.30x = 131,669.85 × 35,189.04
  4. Step 4: Simplify right side
    87,780.30x = 4,633,335,618.44
  5. Step 5: Solve for x
    x = 4,633,335,618.44/87,780.30
  6. Step 6: Final answer
    x = 52,783.32

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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.