Home / 76,403.44-114,605-43,108.38

Finding the Fourth Proportional to 76,403.44, 114,605 and 43,108.38

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Solution

The fourth proportional to 76,403.44, 114,605 and 43,108.38 is: 64,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,403.44 : 114,605 = 43,108.38 : x
  2. Step 2: Convert to fraction form
    76,403.44/114,605 = 43,108.38/x
  3. Step 3: Cross multiply
    76,403.44x = 114,605 × 43,108.38
  4. Step 4: Simplify right side
    76,403.44x = 4,940,435,889.90
  5. Step 5: Solve for x
    x = 4,940,435,889.90/76,403.44
  6. Step 6: Final answer
    x = 64,662.48

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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.