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Finding the Fourth Proportional to 89,289.36, 133,930.20 and 26,958

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Solution

The fourth proportional to 89,289.36, 133,930.20 and 26,958 is: 40,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,289.36 : 133,930.20 = 26,958 : x
  2. Step 2: Convert to fraction form
    89,289.36/133,930.20 = 26,958/x
  3. Step 3: Cross multiply
    89,289.36x = 133,930.20 × 26,958
  4. Step 4: Simplify right side
    89,289.36x = 3,610,490,331.60
  5. Step 5: Solve for x
    x = 3,610,490,331.60/89,289.36
  6. Step 6: Final answer
    x = 40,435.84

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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.