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Finding the Fourth Proportional to 66,915.37, 100,366.21 and 22,542.50

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Solution

The fourth proportional to 66,915.37, 100,366.21 and 22,542.50 is: 33,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.37 : 100,366.21 = 22,542.50 : x
  2. Step 2: Convert to fraction form
    66,915.37/100,366.21 = 22,542.50/x
  3. Step 3: Cross multiply
    66,915.37x = 100,366.21 × 22,542.50
  4. Step 4: Simplify right side
    66,915.37x = 2,262,505,631.42
  5. Step 5: Solve for x
    x = 2,262,505,631.42/66,915.37
  6. Step 6: Final answer
    x = 33,811.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.