Home / 87,650.86-131,509.09-45,504.64

Finding the Fourth Proportional to 87,650.86, 131,509.09 and 45,504.64

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Solution

The fourth proportional to 87,650.86, 131,509.09 and 45,504.64 is: 68,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,650.86 : 131,509.09 = 45,504.64 : x
  2. Step 2: Convert to fraction form
    87,650.86/131,509.09 = 45,504.64/x
  3. Step 3: Cross multiply
    87,650.86x = 131,509.09 × 45,504.64
  4. Step 4: Simplify right side
    87,650.86x = 5,984,273,406.69
  5. Step 5: Solve for x
    x = 5,984,273,406.69/87,650.86
  6. Step 6: Final answer
    x = 68,273.98

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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.