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Finding the Fourth Proportional to 66,156, 91,295.28 and 36,348

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Solution

The fourth proportional to 66,156, 91,295.28 and 36,348 is: 50,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,156 : 91,295.28 = 36,348 : x
  2. Step 2: Convert to fraction form
    66,156/91,295.28 = 36,348/x
  3. Step 3: Cross multiply
    66,156x = 91,295.28 × 36,348
  4. Step 4: Simplify right side
    66,156x = 3,318,400,837.44
  5. Step 5: Solve for x
    x = 3,318,400,837.44/66,156
  6. Step 6: Final answer
    x = 50,160.24

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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.