Home / 87,247.86-120,399.41-48,485.55

Finding the Fourth Proportional to 87,247.86, 120,399.41 and 48,485.55

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Solution

The fourth proportional to 87,247.86, 120,399.41 and 48,485.55 is: 66,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,247.86 : 120,399.41 = 48,485.55 : x
  2. Step 2: Convert to fraction form
    87,247.86/120,399.41 = 48,485.55/x
  3. Step 3: Cross multiply
    87,247.86x = 120,399.41 × 48,485.55
  4. Step 4: Simplify right side
    87,247.86x = 5,837,631,371.10
  5. Step 5: Solve for x
    x = 5,837,631,371.10/87,247.86
  6. Step 6: Final answer
    x = 66,908.59

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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.