Home / 75,619.22-104,360.55-43,788.68

Finding the Fourth Proportional to 75,619.22, 104,360.55 and 43,788.68

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Solution

The fourth proportional to 75,619.22, 104,360.55 and 43,788.68 is: 60,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,619.22 : 104,360.55 = 43,788.68 : x
  2. Step 2: Convert to fraction form
    75,619.22/104,360.55 = 43,788.68/x
  3. Step 3: Cross multiply
    75,619.22x = 104,360.55 × 43,788.68
  4. Step 4: Simplify right side
    75,619.22x = 4,569,810,728.57
  5. Step 5: Solve for x
    x = 4,569,810,728.57/75,619.22
  6. Step 6: Final answer
    x = 60,431.87

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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.