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Finding the Fourth Proportional to 76,007.20, 114,021.60 and 23,411.20

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Solution

The fourth proportional to 76,007.20, 114,021.60 and 23,411.20 is: 35,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,007.20 : 114,021.60 = 23,411.20 : x
  2. Step 2: Convert to fraction form
    76,007.20/114,021.60 = 23,411.20/x
  3. Step 3: Cross multiply
    76,007.20x = 114,021.60 × 23,411.20
  4. Step 4: Simplify right side
    76,007.20x = 2,669,382,481.92
  5. Step 5: Solve for x
    x = 2,669,382,481.92/76,007.20
  6. Step 6: Final answer
    x = 35,120.13

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