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Finding the Fourth Proportional to 69,336.60, 95,684.52 and 39,128.32

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Solution

The fourth proportional to 69,336.60, 95,684.52 and 39,128.32 is: 53,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336.60 : 95,684.52 = 39,128.32 : x
  2. Step 2: Convert to fraction form
    69,336.60/95,684.52 = 39,128.32/x
  3. Step 3: Cross multiply
    69,336.60x = 95,684.52 × 39,128.32
  4. Step 4: Simplify right side
    69,336.60x = 3,743,974,517.61
  5. Step 5: Solve for x
    x = 3,743,974,517.61/69,336.60
  6. Step 6: Final answer
    x = 53,997.09

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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.