Home / 87,574.86-131,405.09-54,286.02

Finding the Fourth Proportional to 87,574.86, 131,405.09 and 54,286.02

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Solution

The fourth proportional to 87,574.86, 131,405.09 and 54,286.02 is: 81,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,574.86 : 131,405.09 = 54,286.02 : x
  2. Step 2: Convert to fraction form
    87,574.86/131,405.09 = 54,286.02/x
  3. Step 3: Cross multiply
    87,574.86x = 131,405.09 × 54,286.02
  4. Step 4: Simplify right side
    87,574.86x = 7,133,459,072.41
  5. Step 5: Solve for x
    x = 7,133,459,072.41/87,574.86
  6. Step 6: Final answer
    x = 81,455.56

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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.