Home / 75,783.18-104,578.50-41,791.65

Finding the Fourth Proportional to 75,783.18, 104,578.50 and 41,791.65

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Solution

The fourth proportional to 75,783.18, 104,578.50 and 41,791.65 is: 57,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.18 : 104,578.50 = 41,791.65 : x
  2. Step 2: Convert to fraction form
    75,783.18/104,578.50 = 41,791.65/x
  3. Step 3: Cross multiply
    75,783.18x = 104,578.50 × 41,791.65
  4. Step 4: Simplify right side
    75,783.18x = 4,370,508,069.53
  5. Step 5: Solve for x
    x = 4,370,508,069.53/75,783.18
  6. Step 6: Final answer
    x = 57,671.22

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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.