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Finding the Fourth Proportional to 66,729.36, 92,082.54 and 36,508.68

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Solution

The fourth proportional to 66,729.36, 92,082.54 and 36,508.68 is: 50,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,729.36 : 92,082.54 = 36,508.68 : x
  2. Step 2: Convert to fraction form
    66,729.36/92,082.54 = 36,508.68/x
  3. Step 3: Cross multiply
    66,729.36x = 92,082.54 × 36,508.68
  4. Step 4: Simplify right side
    66,729.36x = 3,361,811,986.45
  5. Step 5: Solve for x
    x = 3,361,811,986.45/66,729.36
  6. Step 6: Final answer
    x = 50,379.80

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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.