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Finding the Fourth Proportional to 66,105.34, 91,229.76 and 37,424.97

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Solution

The fourth proportional to 66,105.34, 91,229.76 and 37,424.97 is: 51,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.34 : 91,229.76 = 37,424.97 : x
  2. Step 2: Convert to fraction form
    66,105.34/91,229.76 = 37,424.97/x
  3. Step 3: Cross multiply
    66,105.34x = 91,229.76 × 37,424.97
  4. Step 4: Simplify right side
    66,105.34x = 3,414,271,031.11
  5. Step 5: Solve for x
    x = 3,414,271,031.11/66,105.34
  6. Step 6: Final answer
    x = 51,648.95

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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.