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Finding the Fourth Proportional to 69,886.36, 96,444.74 and 39,668.84

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Solution

The fourth proportional to 69,886.36, 96,444.74 and 39,668.84 is: 54,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,886.36 : 96,444.74 = 39,668.84 : x
  2. Step 2: Convert to fraction form
    69,886.36/96,444.74 = 39,668.84/x
  3. Step 3: Cross multiply
    69,886.36x = 96,444.74 × 39,668.84
  4. Step 4: Simplify right side
    69,886.36x = 3,825,850,576.85
  5. Step 5: Solve for x
    x = 3,825,850,576.85/69,886.36
  6. Step 6: Final answer
    x = 54,743.88

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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.