Home / 66,729.12-92,082.21-36,508.42

Finding the Fourth Proportional to 66,729.12, 92,082.21 and 36,508.42

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Solution

The fourth proportional to 66,729.12, 92,082.21 and 36,508.42 is: 50,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,729.12 : 92,082.21 = 36,508.42 : x
  2. Step 2: Convert to fraction form
    66,729.12/92,082.21 = 36,508.42/x
  3. Step 3: Cross multiply
    66,729.12x = 92,082.21 × 36,508.42
  4. Step 4: Simplify right side
    66,729.12x = 3,361,775,997.21
  5. Step 5: Solve for x
    x = 3,361,775,997.21/66,729.12
  6. Step 6: Final answer
    x = 50,379.44

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1.5x scale

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.