Home / 89,330.40-133,837.92-54,198.72

Finding the Fourth Proportional to 89,330.40, 133,837.92 and 54,198.72

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Solution

The fourth proportional to 89,330.40, 133,837.92 and 54,198.72 is: 81,202.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,330.40 : 133,837.92 = 54,198.72 : x
  2. Step 2: Convert to fraction form
    89,330.40/133,837.92 = 54,198.72/x
  3. Step 3: Cross multiply
    89,330.40x = 133,837.92 × 54,198.72
  4. Step 4: Simplify right side
    89,330.40x = 7,253,843,951.46
  5. Step 5: Solve for x
    x = 7,253,843,951.46/89,330.40
  6. Step 6: Final answer
    x = 81,202.41

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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.