Home / 69,138.09-95,411.79-40,843.71

Finding the Fourth Proportional to 69,138.09, 95,411.79 and 40,843.71

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Solution

The fourth proportional to 69,138.09, 95,411.79 and 40,843.71 is: 56,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.09 : 95,411.79 = 40,843.71 : x
  2. Step 2: Convert to fraction form
    69,138.09/95,411.79 = 40,843.71/x
  3. Step 3: Cross multiply
    69,138.09x = 95,411.79 × 40,843.71
  4. Step 4: Simplify right side
    69,138.09x = 3,896,971,481.34
  5. Step 5: Solve for x
    x = 3,896,971,481.34/69,138.09
  6. Step 6: Final answer
    x = 56,365.04

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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.