Home / 87,620.90-131,431.35-32,209.70

Finding the Fourth Proportional to 87,620.90, 131,431.35 and 32,209.70

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Solution

The fourth proportional to 87,620.90, 131,431.35 and 32,209.70 is: 48,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,620.90 : 131,431.35 = 32,209.70 : x
  2. Step 2: Convert to fraction form
    87,620.90/131,431.35 = 32,209.70/x
  3. Step 3: Cross multiply
    87,620.90x = 131,431.35 × 32,209.70
  4. Step 4: Simplify right side
    87,620.90x = 4,233,364,354.10
  5. Step 5: Solve for x
    x = 4,233,364,354.10/87,620.90
  6. Step 6: Final answer
    x = 48,314.55

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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.