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Finding the Fourth Proportional to 66,101, 91,220.10 and 36,293

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Solution

The fourth proportional to 66,101, 91,220.10 and 36,293 is: 50,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101 : 91,220.10 = 36,293 : x
  2. Step 2: Convert to fraction form
    66,101/91,220.10 = 36,293/x
  3. Step 3: Cross multiply
    66,101x = 91,220.10 × 36,293
  4. Step 4: Simplify right side
    66,101x = 3,310,651,089.30
  5. Step 5: Solve for x
    x = 3,310,651,089.30/66,101
  6. Step 6: Final answer
    x = 50,084.74

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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.