Home / 75,134.40-103,685.28-41,601.60

Finding the Fourth Proportional to 75,134.40, 103,685.28 and 41,601.60

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Solution

The fourth proportional to 75,134.40, 103,685.28 and 41,601.60 is: 57,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.40 : 103,685.28 = 41,601.60 : x
  2. Step 2: Convert to fraction form
    75,134.40/103,685.28 = 41,601.60/x
  3. Step 3: Cross multiply
    75,134.40x = 103,685.28 × 41,601.60
  4. Step 4: Simplify right side
    75,134.40x = 4,313,473,544.45
  5. Step 5: Solve for x
    x = 4,313,473,544.45/75,134.40
  6. Step 6: Final answer
    x = 57,410.10

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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.