Home / 89,331.38-133,354.49-76,543.43

Finding the Fourth Proportional to 89,331.38, 133,354.49 and 76,543.43

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Solution

The fourth proportional to 89,331.38, 133,354.49 and 76,543.43 is: 114,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.38 : 133,354.49 = 76,543.43 : x
  2. Step 2: Convert to fraction form
    89,331.38/133,354.49 = 76,543.43/x
  3. Step 3: Cross multiply
    89,331.38x = 133,354.49 × 76,543.43
  4. Step 4: Simplify right side
    89,331.38x = 10,207,410,576.75
  5. Step 5: Solve for x
    x = 10,207,410,576.75/89,331.38
  6. Step 6: Final answer
    x = 114,264.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.