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Finding the Fourth Proportional to 66,350.91, 91,562.88 and 36,136.76

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Solution

The fourth proportional to 66,350.91, 91,562.88 and 36,136.76 is: 49,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,350.91 : 91,562.88 = 36,136.76 : x
  2. Step 2: Convert to fraction form
    66,350.91/91,562.88 = 36,136.76/x
  3. Step 3: Cross multiply
    66,350.91x = 91,562.88 × 36,136.76
  4. Step 4: Simplify right side
    66,350.91x = 3,308,785,361.65
  5. Step 5: Solve for x
    x = 3,308,785,361.65/66,350.91
  6. Step 6: Final answer
    x = 49,867.97

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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.