Home / 66,840.72-92,234.06-38,540.94

Finding the Fourth Proportional to 66,840.72, 92,234.06 and 38,540.94

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Solution

The fourth proportional to 66,840.72, 92,234.06 and 38,540.94 is: 53,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,840.72 : 92,234.06 = 38,540.94 : x
  2. Step 2: Convert to fraction form
    66,840.72/92,234.06 = 38,540.94/x
  3. Step 3: Cross multiply
    66,840.72x = 92,234.06 × 38,540.94
  4. Step 4: Simplify right side
    66,840.72x = 3,554,787,372.42
  5. Step 5: Solve for x
    x = 3,554,787,372.42/66,840.72
  6. Step 6: Final answer
    x = 53,182.96

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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.