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Finding the Fourth Proportional to 66,360.60, 91,607.22 and 39,512.52

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Solution

The fourth proportional to 66,360.60, 91,607.22 and 39,512.52 is: 54,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,360.60 : 91,607.22 = 39,512.52 : x
  2. Step 2: Convert to fraction form
    66,360.60/91,607.22 = 39,512.52/x
  3. Step 3: Cross multiply
    66,360.60x = 91,607.22 × 39,512.52
  4. Step 4: Simplify right side
    66,360.60x = 3,619,632,112.39
  5. Step 5: Solve for x
    x = 3,619,632,112.39/66,360.60
  6. Step 6: Final answer
    x = 54,544.90

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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.