Home / 87,682.72-131,622.36-35,128.84

Finding the Fourth Proportional to 87,682.72, 131,622.36 and 35,128.84

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Solution

The fourth proportional to 87,682.72, 131,622.36 and 35,128.84 is: 52,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.72 : 131,622.36 = 35,128.84 : x
  2. Step 2: Convert to fraction form
    87,682.72/131,622.36 = 35,128.84/x
  3. Step 3: Cross multiply
    87,682.72x = 131,622.36 × 35,128.84
  4. Step 4: Simplify right side
    87,682.72x = 4,623,740,824.86
  5. Step 5: Solve for x
    x = 4,623,740,824.86/87,682.72
  6. Step 6: Final answer
    x = 52,732.63

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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.