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Finding the Fourth Proportional to 66,269.62, 91,485.96 and 51,128.26

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Solution

The fourth proportional to 66,269.62, 91,485.96 and 51,128.26 is: 70,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,269.62 : 91,485.96 = 51,128.26 : x
  2. Step 2: Convert to fraction form
    66,269.62/91,485.96 = 51,128.26/x
  3. Step 3: Cross multiply
    66,269.62x = 91,485.96 × 51,128.26
  4. Step 4: Simplify right side
    66,269.62x = 4,677,517,949.23
  5. Step 5: Solve for x
    x = 4,677,517,949.23/66,269.62
  6. Step 6: Final answer
    x = 70,583.14

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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.