Home / 87,757.88-131,611.70-28,598.72

Finding the Fourth Proportional to 87,757.88, 131,611.70 and 28,598.72

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Solution

The fourth proportional to 87,757.88, 131,611.70 and 28,598.72 is: 42,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,757.88 : 131,611.70 = 28,598.72 : x
  2. Step 2: Convert to fraction form
    87,757.88/131,611.70 = 28,598.72/x
  3. Step 3: Cross multiply
    87,757.88x = 131,611.70 × 28,598.72
  4. Step 4: Simplify right side
    87,757.88x = 3,763,926,157.02
  5. Step 5: Solve for x
    x = 3,763,926,157.02/87,757.88
  6. Step 6: Final answer
    x = 42,889.89

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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.