Home / 87,489.54-131,255.21-28,325.27

Finding the Fourth Proportional to 87,489.54, 131,255.21 and 28,325.27

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Solution

The fourth proportional to 87,489.54, 131,255.21 and 28,325.27 is: 42,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,489.54 : 131,255.21 = 28,325.27 : x
  2. Step 2: Convert to fraction form
    87,489.54/131,255.21 = 28,325.27/x
  3. Step 3: Cross multiply
    87,489.54x = 131,255.21 × 28,325.27
  4. Step 4: Simplify right side
    87,489.54x = 3,717,839,661.11
  5. Step 5: Solve for x
    x = 3,717,839,661.11/87,489.54
  6. Step 6: Final answer
    x = 42,494.68

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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.