Home / 71,884.06-99,200.65-39,619.82

Finding the Fourth Proportional to 71,884.06, 99,200.65 and 39,619.82

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Solution

The fourth proportional to 71,884.06, 99,200.65 and 39,619.82 is: 54,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,884.06 : 99,200.65 = 39,619.82 : x
  2. Step 2: Convert to fraction form
    71,884.06/99,200.65 = 39,619.82/x
  3. Step 3: Cross multiply
    71,884.06x = 99,200.65 × 39,619.82
  4. Step 4: Simplify right side
    71,884.06x = 3,930,311,896.88
  5. Step 5: Solve for x
    x = 3,930,311,896.88/71,884.06
  6. Step 6: Final answer
    x = 54,675.71

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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.