Home / 74,306.57-111,269.55-40,989.60

Finding the Fourth Proportional to 74,306.57, 111,269.55 and 40,989.60

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Solution

The fourth proportional to 74,306.57, 111,269.55 and 40,989.60 is: 61,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,306.57 : 111,269.55 = 40,989.60 : x
  2. Step 2: Convert to fraction form
    74,306.57/111,269.55 = 40,989.60/x
  3. Step 3: Cross multiply
    74,306.57x = 111,269.55 × 40,989.60
  4. Step 4: Simplify right side
    74,306.57x = 4,560,894,346.68
  5. Step 5: Solve for x
    x = 4,560,894,346.68/74,306.57
  6. Step 6: Final answer
    x = 61,379.43

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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.