Home / 87,865.48-131,929.74-76,055.80

Finding the Fourth Proportional to 87,865.48, 131,929.74 and 76,055.80

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Solution

The fourth proportional to 87,865.48, 131,929.74 and 76,055.80 is: 114,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.48 : 131,929.74 = 76,055.80 : x
  2. Step 2: Convert to fraction form
    87,865.48/131,929.74 = 76,055.80/x
  3. Step 3: Cross multiply
    87,865.48x = 131,929.74 × 76,055.80
  4. Step 4: Simplify right side
    87,865.48x = 10,034,021,919.49
  5. Step 5: Solve for x
    x = 10,034,021,919.49/87,865.48
  6. Step 6: Final answer
    x = 114,197.54

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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.