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Finding the Fourth Proportional to 66,108, 91,229.04 and 36,300

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Solution

The fourth proportional to 66,108, 91,229.04 and 36,300 is: 50,094

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108 : 91,229.04 = 36,300 : x
  2. Step 2: Convert to fraction form
    66,108/91,229.04 = 36,300/x
  3. Step 3: Cross multiply
    66,108x = 91,229.04 × 36,300
  4. Step 4: Simplify right side
    66,108x = 3,311,614,152
  5. Step 5: Solve for x
    x = 3,311,614,152/66,108
  6. Step 6: Final answer
    x = 50,094

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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.