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Finding the Fourth Proportional to 66,555.11, 91,845.35 and 36,340.34

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Solution

The fourth proportional to 66,555.11, 91,845.35 and 36,340.34 is: 50,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,555.11 : 91,845.35 = 36,340.34 : x
  2. Step 2: Convert to fraction form
    66,555.11/91,845.35 = 36,340.34/x
  3. Step 3: Cross multiply
    66,555.11x = 91,845.35 × 36,340.34
  4. Step 4: Simplify right side
    66,555.11x = 3,337,691,246.42
  5. Step 5: Solve for x
    x = 3,337,691,246.42/66,555.11
  6. Step 6: Final answer
    x = 50,149.29

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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.