Home / 89,076.70-133,399.05-47,431.90

Finding the Fourth Proportional to 89,076.70, 133,399.05 and 47,431.90

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Solution

The fourth proportional to 89,076.70, 133,399.05 and 47,431.90 is: 71,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,076.70 : 133,399.05 = 47,431.90 : x
  2. Step 2: Convert to fraction form
    89,076.70/133,399.05 = 47,431.90/x
  3. Step 3: Cross multiply
    89,076.70x = 133,399.05 × 47,431.90
  4. Step 4: Simplify right side
    89,076.70x = 6,327,370,399.70
  5. Step 5: Solve for x
    x = 6,327,370,399.70/89,076.70
  6. Step 6: Final answer
    x = 71,032.83

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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.