Home / 87,361.76-131,029.84-42,976.64

Finding the Fourth Proportional to 87,361.76, 131,029.84 and 42,976.64

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Solution

The fourth proportional to 87,361.76, 131,029.84 and 42,976.64 is: 64,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.76 : 131,029.84 = 42,976.64 : x
  2. Step 2: Convert to fraction form
    87,361.76/131,029.84 = 42,976.64/x
  3. Step 3: Cross multiply
    87,361.76x = 131,029.84 × 42,976.64
  4. Step 4: Simplify right side
    87,361.76x = 5,631,222,262.94
  5. Step 5: Solve for x
    x = 5,631,222,262.94/87,361.76
  6. Step 6: Final answer
    x = 64,458.66

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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.