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Finding the Fourth Proportional to 66,696.28, 100,078.92 and 29,282.63

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Solution

The fourth proportional to 66,696.28, 100,078.92 and 29,282.63 is: 43,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.28 : 100,078.92 = 29,282.63 : x
  2. Step 2: Convert to fraction form
    66,696.28/100,078.92 = 29,282.63/x
  3. Step 3: Cross multiply
    66,696.28x = 100,078.92 × 29,282.63
  4. Step 4: Simplify right side
    66,696.28x = 2,930,573,484.77
  5. Step 5: Solve for x
    x = 2,930,573,484.77/66,696.28
  6. Step 6: Final answer
    x = 43,939.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.