Home / 87,247.86-120,399.40-48,485.54

Finding the Fourth Proportional to 87,247.86, 120,399.40 and 48,485.54

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Solution

The fourth proportional to 87,247.86, 120,399.40 and 48,485.54 is: 66,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,247.86 : 120,399.40 = 48,485.54 : x
  2. Step 2: Convert to fraction form
    87,247.86/120,399.40 = 48,485.54/x
  3. Step 3: Cross multiply
    87,247.86x = 120,399.40 × 48,485.54
  4. Step 4: Simplify right side
    87,247.86x = 5,837,630,286.28
  5. Step 5: Solve for x
    x = 5,837,630,286.28/87,247.86
  6. Step 6: Final answer
    x = 66,908.58

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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.