Home / 89,234.78-133,864.50-30,087.36

Finding the Fourth Proportional to 89,234.78, 133,864.50 and 30,087.36

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Solution

The fourth proportional to 89,234.78, 133,864.50 and 30,087.36 is: 45,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,234.78 : 133,864.50 = 30,087.36 : x
  2. Step 2: Convert to fraction form
    89,234.78/133,864.50 = 30,087.36/x
  3. Step 3: Cross multiply
    89,234.78x = 133,864.50 × 30,087.36
  4. Step 4: Simplify right side
    89,234.78x = 4,027,629,402.72
  5. Step 5: Solve for x
    x = 4,027,629,402.72/89,234.78
  6. Step 6: Final answer
    x = 45,135.20

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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.