Home / 87,464-131,224.96-43,121.28

Finding the Fourth Proportional to 87,464, 131,224.96 and 43,121.28

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Solution

The fourth proportional to 87,464, 131,224.96 and 43,121.28 is: 64,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464 : 131,224.96 = 43,121.28 : x
  2. Step 2: Convert to fraction form
    87,464/131,224.96 = 43,121.28/x
  3. Step 3: Cross multiply
    87,464x = 131,224.96 × 43,121.28
  4. Step 4: Simplify right side
    87,464x = 5,658,588,243.15
  5. Step 5: Solve for x
    x = 5,658,588,243.15/87,464
  6. Step 6: Final answer
    x = 64,696.20

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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.