Home / 67,419.57-92,986.38-43,222.80

Finding the Fourth Proportional to 67,419.57, 92,986.38 and 43,222.80

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Solution

The fourth proportional to 67,419.57, 92,986.38 and 43,222.80 is: 59,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,419.57 : 92,986.38 = 43,222.80 : x
  2. Step 2: Convert to fraction form
    67,419.57/92,986.38 = 43,222.80/x
  3. Step 3: Cross multiply
    67,419.57x = 92,986.38 × 43,222.80
  4. Step 4: Simplify right side
    67,419.57x = 4,019,131,705.46
  5. Step 5: Solve for x
    x = 4,019,131,705.46/67,419.57
  6. Step 6: Final answer
    x = 59,613.72

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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.