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Finding the Fourth Proportional to 66,392.52, 91,620.75 and 36,179.10

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Solution

The fourth proportional to 66,392.52, 91,620.75 and 36,179.10 is: 49,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.52 : 91,620.75 = 36,179.10 : x
  2. Step 2: Convert to fraction form
    66,392.52/91,620.75 = 36,179.10/x
  3. Step 3: Cross multiply
    66,392.52x = 91,620.75 × 36,179.10
  4. Step 4: Simplify right side
    66,392.52x = 3,314,756,276.33
  5. Step 5: Solve for x
    x = 3,314,756,276.33/66,392.52
  6. Step 6: Final answer
    x = 49,926.65

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1.5x scale

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.