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Finding the Fourth Proportional to 66,394.24, 91,622.88 and 36,179.80

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Solution

The fourth proportional to 66,394.24, 91,622.88 and 36,179.80 is: 49,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,394.24 : 91,622.88 = 36,179.80 : x
  2. Step 2: Convert to fraction form
    66,394.24/91,622.88 = 36,179.80/x
  3. Step 3: Cross multiply
    66,394.24x = 91,622.88 × 36,179.80
  4. Step 4: Simplify right side
    66,394.24x = 3,314,897,473.82
  5. Step 5: Solve for x
    x = 3,314,897,473.82/66,394.24
  6. Step 6: Final answer
    x = 49,927.49

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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.