Home / 87,757.88-121,056.66-53,782.83

Finding the Fourth Proportional to 87,757.88, 121,056.66 and 53,782.83

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Solution

The fourth proportional to 87,757.88, 121,056.66 and 53,782.83 is: 74,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,757.88 : 121,056.66 = 53,782.83 : x
  2. Step 2: Convert to fraction form
    87,757.88/121,056.66 = 53,782.83/x
  3. Step 3: Cross multiply
    87,757.88x = 121,056.66 × 53,782.83
  4. Step 4: Simplify right side
    87,757.88x = 6,510,769,765.15
  5. Step 5: Solve for x
    x = 6,510,769,765.15/87,757.88
  6. Step 6: Final answer
    x = 74,190.15

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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.