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Finding the Fourth Proportional to 74,303.82, 111,265.43 and 40,986.85

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Solution

The fourth proportional to 74,303.82, 111,265.43 and 40,986.85 is: 61,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,303.82 : 111,265.43 = 40,986.85 : x
  2. Step 2: Convert to fraction form
    74,303.82/111,265.43 = 40,986.85/x
  3. Step 3: Cross multiply
    74,303.82x = 111,265.43 × 40,986.85
  4. Step 4: Simplify right side
    74,303.82x = 4,560,419,489.60
  5. Step 5: Solve for x
    x = 4,560,419,489.60/74,303.82
  6. Step 6: Final answer
    x = 61,375.30

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1.5x scale

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.