Home / 87,895.48-131,851.32-28,731.48

Finding the Fourth Proportional to 87,895.48, 131,851.32 and 28,731.48

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Solution

The fourth proportional to 87,895.48, 131,851.32 and 28,731.48 is: 43,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,895.48 : 131,851.32 = 28,731.48 : x
  2. Step 2: Convert to fraction form
    87,895.48/131,851.32 = 28,731.48/x
  3. Step 3: Cross multiply
    87,895.48x = 131,851.32 × 28,731.48
  4. Step 4: Simplify right side
    87,895.48x = 3,788,283,563.55
  5. Step 5: Solve for x
    x = 3,788,283,563.55/87,895.48
  6. Step 6: Final answer
    x = 43,099.87

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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.