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Finding the Fourth Proportional to 66,604.68, 91,911.58 and 36,388.58

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Solution

The fourth proportional to 66,604.68, 91,911.58 and 36,388.58 is: 50,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604.68 : 91,911.58 = 36,388.58 : x
  2. Step 2: Convert to fraction form
    66,604.68/91,911.58 = 36,388.58/x
  3. Step 3: Cross multiply
    66,604.68x = 91,911.58 × 36,388.58
  4. Step 4: Simplify right side
    66,604.68x = 3,344,531,331.23
  5. Step 5: Solve for x
    x = 3,344,531,331.23/66,604.68
  6. Step 6: Final answer
    x = 50,214.66

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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.