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Finding the Fourth Proportional to 66,102, 91,220.76 and 36,295.92

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Solution

The fourth proportional to 66,102, 91,220.76 and 36,295.92 is: 50,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102 : 91,220.76 = 36,295.92 : x
  2. Step 2: Convert to fraction form
    66,102/91,220.76 = 36,295.92/x
  3. Step 3: Cross multiply
    66,102x = 91,220.76 × 36,295.92
  4. Step 4: Simplify right side
    66,102x = 3,310,941,407.30
  5. Step 5: Solve for x
    x = 3,310,941,407.30/66,102
  6. Step 6: Final answer
    x = 50,088.37

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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.