Home / 61,021.76-91,367.45-43,179.08

Finding the Fourth Proportional to 61,021.76, 91,367.45 and 43,179.08

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Solution

The fourth proportional to 61,021.76, 91,367.45 and 43,179.08 is: 64,651.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,021.76 : 91,367.45 = 43,179.08 : x
  2. Step 2: Convert to fraction form
    61,021.76/91,367.45 = 43,179.08/x
  3. Step 3: Cross multiply
    61,021.76x = 91,367.45 × 43,179.08
  4. Step 4: Simplify right side
    61,021.76x = 3,945,162,217.05
  5. Step 5: Solve for x
    x = 3,945,162,217.05/61,021.76
  6. Step 6: Final answer
    x = 64,651.73

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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.