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Finding the Fourth Proportional to 66,003.49, 91,084.72 and 35,788.76

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Solution

The fourth proportional to 66,003.49, 91,084.72 and 35,788.76 is: 49,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,003.49 : 91,084.72 = 35,788.76 : x
  2. Step 2: Convert to fraction form
    66,003.49/91,084.72 = 35,788.76/x
  3. Step 3: Cross multiply
    66,003.49x = 91,084.72 × 35,788.76
  4. Step 4: Simplify right side
    66,003.49x = 3,259,809,183.75
  5. Step 5: Solve for x
    x = 3,259,809,183.75/66,003.49
  6. Step 6: Final answer
    x = 49,388.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.