Home / 87,509.82-120,772.62-53,540.94

Finding the Fourth Proportional to 87,509.82, 120,772.62 and 53,540.94

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Solution

The fourth proportional to 87,509.82, 120,772.62 and 53,540.94 is: 73,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,509.82 : 120,772.62 = 53,540.94 : x
  2. Step 2: Convert to fraction form
    87,509.82/120,772.62 = 53,540.94/x
  3. Step 3: Cross multiply
    87,509.82x = 120,772.62 × 53,540.94
  4. Step 4: Simplify right side
    87,509.82x = 6,466,279,601.06
  5. Step 5: Solve for x
    x = 6,466,279,601.06/87,509.82
  6. Step 6: Final answer
    x = 73,892.05

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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.