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Finding the Fourth Proportional to 66,384.60, 91,609.60 and 36,170.17

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Solution

The fourth proportional to 66,384.60, 91,609.60 and 36,170.17 is: 49,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.60 : 91,609.60 = 36,170.17 : x
  2. Step 2: Convert to fraction form
    66,384.60/91,609.60 = 36,170.17/x
  3. Step 3: Cross multiply
    66,384.60x = 91,609.60 × 36,170.17
  4. Step 4: Simplify right side
    66,384.60x = 3,313,534,659.06
  5. Step 5: Solve for x
    x = 3,313,534,659.06/66,384.60
  6. Step 6: Final answer
    x = 49,914.21

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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.