Home / 87,916-121,324.16-50,189.44

Finding the Fourth Proportional to 87,916, 121,324.16 and 50,189.44

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Solution

The fourth proportional to 87,916, 121,324.16 and 50,189.44 is: 69,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916 : 121,324.16 = 50,189.44 : x
  2. Step 2: Convert to fraction form
    87,916/121,324.16 = 50,189.44/x
  3. Step 3: Cross multiply
    87,916x = 121,324.16 × 50,189.44
  4. Step 4: Simplify right side
    87,916x = 6,089,191,648.87
  5. Step 5: Solve for x
    x = 6,089,191,648.87/87,916
  6. Step 6: Final answer
    x = 69,261.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.