Home / 87,399.63-120,615.09-49,160.96

Finding the Fourth Proportional to 87,399.63, 120,615.09 and 49,160.96

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Solution

The fourth proportional to 87,399.63, 120,615.09 and 49,160.96 is: 67,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,399.63 : 120,615.09 = 49,160.96 : x
  2. Step 2: Convert to fraction form
    87,399.63/120,615.09 = 49,160.96/x
  3. Step 3: Cross multiply
    87,399.63x = 120,615.09 × 49,160.96
  4. Step 4: Simplify right side
    87,399.63x = 5,929,553,916.42
  5. Step 5: Solve for x
    x = 5,929,553,916.42/87,399.63
  6. Step 6: Final answer
    x = 67,844.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.