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Finding the Fourth Proportional to 66,332.71, 91,540.88 and 36,119.30

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Solution

The fourth proportional to 66,332.71, 91,540.88 and 36,119.30 is: 49,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.71 : 91,540.88 = 36,119.30 : x
  2. Step 2: Convert to fraction form
    66,332.71/91,540.88 = 36,119.30/x
  3. Step 3: Cross multiply
    66,332.71x = 91,540.88 × 36,119.30
  4. Step 4: Simplify right side
    66,332.71x = 3,306,392,506.98
  5. Step 5: Solve for x
    x = 3,306,392,506.98/66,332.71
  6. Step 6: Final answer
    x = 49,845.58

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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.