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Finding the Fourth Proportional to 87,294.75, 130,999.52 and 47,879.52

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Solution

The fourth proportional to 87,294.75, 130,999.52 and 47,879.52 is: 71,850.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,294.75 : 130,999.52 = 47,879.52 : x
  2. Step 2: Convert to fraction form
    87,294.75/130,999.52 = 47,879.52/x
  3. Step 3: Cross multiply
    87,294.75x = 130,999.52 × 47,879.52
  4. Step 4: Simplify right side
    87,294.75x = 6,272,194,137.83
  5. Step 5: Solve for x
    x = 6,272,194,137.83/87,294.75
  6. Step 6: Final answer
    x = 71,850.76

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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.