Home / 87,849.20-121,211.16-50,135.60

Finding the Fourth Proportional to 87,849.20, 121,211.16 and 50,135.60

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Solution

The fourth proportional to 87,849.20, 121,211.16 and 50,135.60 is: 69,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,849.20 : 121,211.16 = 50,135.60 : x
  2. Step 2: Convert to fraction form
    87,849.20/121,211.16 = 50,135.60/x
  3. Step 3: Cross multiply
    87,849.20x = 121,211.16 × 50,135.60
  4. Step 4: Simplify right side
    87,849.20x = 6,076,994,233.30
  5. Step 5: Solve for x
    x = 6,076,994,233.30/87,849.20
  6. Step 6: Final answer
    x = 69,175.29

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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.