Home / 87,557.23-131,354.30-28,388.29

Finding the Fourth Proportional to 87,557.23, 131,354.30 and 28,388.29

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Solution

The fourth proportional to 87,557.23, 131,354.30 and 28,388.29 is: 42,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,557.23 : 131,354.30 = 28,388.29 : x
  2. Step 2: Convert to fraction form
    87,557.23/131,354.30 = 28,388.29/x
  3. Step 3: Cross multiply
    87,557.23x = 131,354.30 × 28,388.29
  4. Step 4: Simplify right side
    87,557.23x = 3,728,923,196.27
  5. Step 5: Solve for x
    x = 3,728,923,196.27/87,557.23
  6. Step 6: Final answer
    x = 42,588.41

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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.