Home / 71,884.18-99,200.82-39,619.95

Finding the Fourth Proportional to 71,884.18, 99,200.82 and 39,619.95

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Solution

The fourth proportional to 71,884.18, 99,200.82 and 39,619.95 is: 54,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,884.18 : 99,200.82 = 39,619.95 : x
  2. Step 2: Convert to fraction form
    71,884.18/99,200.82 = 39,619.95/x
  3. Step 3: Cross multiply
    71,884.18x = 99,200.82 × 39,619.95
  4. Step 4: Simplify right side
    71,884.18x = 3,930,331,528.36
  5. Step 5: Solve for x
    x = 3,930,331,528.36/71,884.18
  6. Step 6: Final answer
    x = 54,675.89

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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.