Home / 80,824.86-121,266.45-41,400.54

Finding the Fourth Proportional to 80,824.86, 121,266.45 and 41,400.54

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Solution

The fourth proportional to 80,824.86, 121,266.45 and 41,400.54 is: 62,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,824.86 : 121,266.45 = 41,400.54 : x
  2. Step 2: Convert to fraction form
    80,824.86/121,266.45 = 41,400.54/x
  3. Step 3: Cross multiply
    80,824.86x = 121,266.45 × 41,400.54
  4. Step 4: Simplify right side
    80,824.86x = 5,020,496,513.88
  5. Step 5: Solve for x
    x = 5,020,496,513.88/80,824.86
  6. Step 6: Final answer
    x = 62,115.75

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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.