Home / 75,571.86-113,078.18-45,603.43

Finding the Fourth Proportional to 75,571.86, 113,078.18 and 45,603.43

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Solution

The fourth proportional to 75,571.86, 113,078.18 and 45,603.43 is: 68,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,571.86 : 113,078.18 = 45,603.43 : x
  2. Step 2: Convert to fraction form
    75,571.86/113,078.18 = 45,603.43/x
  3. Step 3: Cross multiply
    75,571.86x = 113,078.18 × 45,603.43
  4. Step 4: Simplify right side
    75,571.86x = 5,156,752,866.16
  5. Step 5: Solve for x
    x = 5,156,752,866.16/75,571.86
  6. Step 6: Final answer
    x = 68,236.42

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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.