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Finding the Fourth Proportional to 87,704.40, 131,524.20 and 43,316.40

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Solution

The fourth proportional to 87,704.40, 131,524.20 and 43,316.40 is: 64,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.40 : 131,524.20 = 43,316.40 : x
  2. Step 2: Convert to fraction form
    87,704.40/131,524.20 = 43,316.40/x
  3. Step 3: Cross multiply
    87,704.40x = 131,524.20 × 43,316.40
  4. Step 4: Simplify right side
    87,704.40x = 5,697,154,856.88
  5. Step 5: Solve for x
    x = 5,697,154,856.88/87,704.40
  6. Step 6: Final answer
    x = 64,958.60

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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.