Home / 75,914.48-113,940.83-40,405.61

Finding the Fourth Proportional to 75,914.48, 113,940.83 and 40,405.61

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Solution

The fourth proportional to 75,914.48, 113,940.83 and 40,405.61 is: 60,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,914.48 : 113,940.83 = 40,405.61 : x
  2. Step 2: Convert to fraction form
    75,914.48/113,940.83 = 40,405.61/x
  3. Step 3: Cross multiply
    75,914.48x = 113,940.83 × 40,405.61
  4. Step 4: Simplify right side
    75,914.48x = 4,603,848,822.88
  5. Step 5: Solve for x
    x = 4,603,848,822.88/75,914.48
  6. Step 6: Final answer
    x = 60,645.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.