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Finding the Fourth Proportional to 66,565.98, 91,872.92 and 39,340.96

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Solution

The fourth proportional to 66,565.98, 91,872.92 and 39,340.96 is: 54,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,565.98 : 91,872.92 = 39,340.96 : x
  2. Step 2: Convert to fraction form
    66,565.98/91,872.92 = 39,340.96/x
  3. Step 3: Cross multiply
    66,565.98x = 91,872.92 × 39,340.96
  4. Step 4: Simplify right side
    66,565.98x = 3,614,368,739.47
  5. Step 5: Solve for x
    x = 3,614,368,739.47/66,565.98
  6. Step 6: Final answer
    x = 54,297.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.