Home / 87,578.11-131,410.10-54,289.36

Finding the Fourth Proportional to 87,578.11, 131,410.10 and 54,289.36

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Solution

The fourth proportional to 87,578.11, 131,410.10 and 54,289.36 is: 81,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,578.11 : 131,410.10 = 54,289.36 : x
  2. Step 2: Convert to fraction form
    87,578.11/131,410.10 = 54,289.36/x
  3. Step 3: Cross multiply
    87,578.11x = 131,410.10 × 54,289.36
  4. Step 4: Simplify right side
    87,578.11x = 7,134,170,226.54
  5. Step 5: Solve for x
    x = 7,134,170,226.54/87,578.11
  6. Step 6: Final answer
    x = 81,460.66

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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.