Home / 89,447.78-134,107.20-45,105.81

Finding the Fourth Proportional to 89,447.78, 134,107.20 and 45,105.81

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Solution

The fourth proportional to 89,447.78, 134,107.20 and 45,105.81 is: 67,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,447.78 : 134,107.20 = 45,105.81 : x
  2. Step 2: Convert to fraction form
    89,447.78/134,107.20 = 45,105.81/x
  3. Step 3: Cross multiply
    89,447.78x = 134,107.20 × 45,105.81
  4. Step 4: Simplify right side
    89,447.78x = 6,049,013,882.83
  5. Step 5: Solve for x
    x = 6,049,013,882.83/89,447.78
  6. Step 6: Final answer
    x = 67,626.21

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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.