Home / 87,169.32-120,261.72-53,166.48

Finding the Fourth Proportional to 87,169.32, 120,261.72 and 53,166.48

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Solution

The fourth proportional to 87,169.32, 120,261.72 and 53,166.48 is: 73,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,169.32 : 120,261.72 = 53,166.48 : x
  2. Step 2: Convert to fraction form
    87,169.32/120,261.72 = 53,166.48/x
  3. Step 3: Cross multiply
    87,169.32x = 120,261.72 × 53,166.48
  4. Step 4: Simplify right side
    87,169.32x = 6,393,892,331.15
  5. Step 5: Solve for x
    x = 6,393,892,331.15/87,169.32
  6. Step 6: Final answer
    x = 73,350.26

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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.