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Finding the Fourth Proportional to 66,188.52, 91,433.04 and 60,209.64

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Solution

The fourth proportional to 66,188.52, 91,433.04 and 60,209.64 is: 83,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.52 : 91,433.04 = 60,209.64 : x
  2. Step 2: Convert to fraction form
    66,188.52/91,433.04 = 60,209.64/x
  3. Step 3: Cross multiply
    66,188.52x = 91,433.04 × 60,209.64
  4. Step 4: Simplify right side
    66,188.52x = 5,505,150,422.51
  5. Step 5: Solve for x
    x = 5,505,150,422.51/66,188.52
  6. Step 6: Final answer
    x = 83,173.80

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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.