Home / 75,143.44-103,696.68-41,608.72

Finding the Fourth Proportional to 75,143.44, 103,696.68 and 41,608.72

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Solution

The fourth proportional to 75,143.44, 103,696.68 and 41,608.72 is: 57,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.44 : 103,696.68 = 41,608.72 : x
  2. Step 2: Convert to fraction form
    75,143.44/103,696.68 = 41,608.72/x
  3. Step 3: Cross multiply
    75,143.44x = 103,696.68 × 41,608.72
  4. Step 4: Simplify right side
    75,143.44x = 4,314,686,123.05
  5. Step 5: Solve for x
    x = 4,314,686,123.05/75,143.44
  6. Step 6: Final answer
    x = 57,419.33

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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.