Home / 87,876.46-131,758.82-74,554.05

Finding the Fourth Proportional to 87,876.46, 131,758.82 and 74,554.05

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Solution

The fourth proportional to 87,876.46, 131,758.82 and 74,554.05 is: 111,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,876.46 : 131,758.82 = 74,554.05 : x
  2. Step 2: Convert to fraction form
    87,876.46/131,758.82 = 74,554.05/x
  3. Step 3: Cross multiply
    87,876.46x = 131,758.82 × 74,554.05
  4. Step 4: Simplify right side
    87,876.46x = 9,823,152,943.41
  5. Step 5: Solve for x
    x = 9,823,152,943.41/87,876.46
  6. Step 6: Final answer
    x = 111,783.67

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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.