Home / 75,104.60-103,640.10-41,106.68

Finding the Fourth Proportional to 75,104.60, 103,640.10 and 41,106.68

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Solution

The fourth proportional to 75,104.60, 103,640.10 and 41,106.68 is: 56,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,104.60 : 103,640.10 = 41,106.68 : x
  2. Step 2: Convert to fraction form
    75,104.60/103,640.10 = 41,106.68/x
  3. Step 3: Cross multiply
    75,104.60x = 103,640.10 × 41,106.68
  4. Step 4: Simplify right side
    75,104.60x = 4,260,300,425.87
  5. Step 5: Solve for x
    x = 4,260,300,425.87/75,104.60
  6. Step 6: Final answer
    x = 56,724.89

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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.