Home / 87,669.78-131,537.79-52,633.86

Finding the Fourth Proportional to 87,669.78, 131,537.79 and 52,633.86

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Solution

The fourth proportional to 87,669.78, 131,537.79 and 52,633.86 is: 78,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,669.78 : 131,537.79 = 52,633.86 : x
  2. Step 2: Convert to fraction form
    87,669.78/131,537.79 = 52,633.86/x
  3. Step 3: Cross multiply
    87,669.78x = 131,537.79 × 52,633.86
  4. Step 4: Simplify right side
    87,669.78x = 6,923,341,623.57
  5. Step 5: Solve for x
    x = 6,923,341,623.57/87,669.78
  6. Step 6: Final answer
    x = 78,970.67

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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.