Home / 82,583.43-113,974.70-77,516.61

Finding the Fourth Proportional to 82,583.43, 113,974.70 and 77,516.61

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Solution

The fourth proportional to 82,583.43, 113,974.70 and 77,516.61 is: 106,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,583.43 : 113,974.70 = 77,516.61 : x
  2. Step 2: Convert to fraction form
    82,583.43/113,974.70 = 77,516.61/x
  3. Step 3: Cross multiply
    82,583.43x = 113,974.70 × 77,516.61
  4. Step 4: Simplify right side
    82,583.43x = 8,834,932,369.77
  5. Step 5: Solve for x
    x = 8,834,932,369.77/82,583.43
  6. Step 6: Final answer
    x = 106,981.90

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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.