Home / 87,905.96-131,857.12-21,346.44

Finding the Fourth Proportional to 87,905.96, 131,857.12 and 21,346.44

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Solution

The fourth proportional to 87,905.96, 131,857.12 and 21,346.44 is: 32,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,905.96 : 131,857.12 = 21,346.44 : x
  2. Step 2: Convert to fraction form
    87,905.96/131,857.12 = 21,346.44/x
  3. Step 3: Cross multiply
    87,905.96x = 131,857.12 × 21,346.44
  4. Step 4: Simplify right side
    87,905.96x = 2,814,680,204.15
  5. Step 5: Solve for x
    x = 2,814,680,204.15/87,905.96
  6. Step 6: Final answer
    x = 32,019.22

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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.