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Finding the Fourth Proportional to 66,497.44, 99,745.20 and 30,938.88

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Solution

The fourth proportional to 66,497.44, 99,745.20 and 30,938.88 is: 46,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,497.44 : 99,745.20 = 30,938.88 : x
  2. Step 2: Convert to fraction form
    66,497.44/99,745.20 = 30,938.88/x
  3. Step 3: Cross multiply
    66,497.44x = 99,745.20 × 30,938.88
  4. Step 4: Simplify right side
    66,497.44x = 3,086,004,773.38
  5. Step 5: Solve for x
    x = 3,086,004,773.38/66,497.44
  6. Step 6: Final answer
    x = 46,407.87

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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.