Home / 87,169.87-120,272.24-53,176.15

Finding the Fourth Proportional to 87,169.87, 120,272.24 and 53,176.15

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Solution

The fourth proportional to 87,169.87, 120,272.24 and 53,176.15 is: 73,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,169.87 : 120,272.24 = 53,176.15 : x
  2. Step 2: Convert to fraction form
    87,169.87/120,272.24 = 53,176.15/x
  3. Step 3: Cross multiply
    87,169.87x = 120,272.24 × 53,176.15
  4. Step 4: Simplify right side
    87,169.87x = 6,395,614,281.83
  5. Step 5: Solve for x
    x = 6,395,614,281.83/87,169.87
  6. Step 6: Final answer
    x = 73,369.55

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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.