Home / 71,865.80-99,167.20-41,660.60

Finding the Fourth Proportional to 71,865.80, 99,167.20 and 41,660.60

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Solution

The fourth proportional to 71,865.80, 99,167.20 and 41,660.60 is: 57,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.80 : 99,167.20 = 41,660.60 : x
  2. Step 2: Convert to fraction form
    71,865.80/99,167.20 = 41,660.60/x
  3. Step 3: Cross multiply
    71,865.80x = 99,167.20 × 41,660.60
  4. Step 4: Simplify right side
    71,865.80x = 4,131,365,052.32
  5. Step 5: Solve for x
    x = 4,131,365,052.32/71,865.80
  6. Step 6: Final answer
    x = 57,487.22

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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.