Home / 87,673.78-131,543.79-52,637.86

Finding the Fourth Proportional to 87,673.78, 131,543.79 and 52,637.86

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Solution

The fourth proportional to 87,673.78, 131,543.79 and 52,637.86 is: 78,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,673.78 : 131,543.79 = 52,637.86 : x
  2. Step 2: Convert to fraction form
    87,673.78/131,543.79 = 52,637.86/x
  3. Step 3: Cross multiply
    87,673.78x = 131,543.79 × 52,637.86
  4. Step 4: Simplify right side
    87,673.78x = 6,924,183,601.89
  5. Step 5: Solve for x
    x = 6,924,183,601.89/87,673.78
  6. Step 6: Final answer
    x = 78,976.67

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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.