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Finding the Fourth Proportional to 66,204.39, 91,362.49 and 35,989.97

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Solution

The fourth proportional to 66,204.39, 91,362.49 and 35,989.97 is: 49,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,204.39 : 91,362.49 = 35,989.97 : x
  2. Step 2: Convert to fraction form
    66,204.39/91,362.49 = 35,989.97/x
  3. Step 3: Cross multiply
    66,204.39x = 91,362.49 × 35,989.97
  4. Step 4: Simplify right side
    66,204.39x = 3,288,133,412.66
  5. Step 5: Solve for x
    x = 3,288,133,412.66/66,204.39
  6. Step 6: Final answer
    x = 49,666.40

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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.