Home / 87,879.78-121,273.48-47,592.62

Finding the Fourth Proportional to 87,879.78, 121,273.48 and 47,592.62

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Solution

The fourth proportional to 87,879.78, 121,273.48 and 47,592.62 is: 65,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.78 : 121,273.48 = 47,592.62 : x
  2. Step 2: Convert to fraction form
    87,879.78/121,273.48 = 47,592.62/x
  3. Step 3: Cross multiply
    87,879.78x = 121,273.48 × 47,592.62
  4. Step 4: Simplify right side
    87,879.78x = 5,771,722,649.72
  5. Step 5: Solve for x
    x = 5,771,722,649.72/87,879.78
  6. Step 6: Final answer
    x = 65,677.48

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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.