Home / 87,795.75-121,157.99-49,563.34

Finding the Fourth Proportional to 87,795.75, 121,157.99 and 49,563.34

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Solution

The fourth proportional to 87,795.75, 121,157.99 and 49,563.34 is: 68,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.75 : 121,157.99 = 49,563.34 : x
  2. Step 2: Convert to fraction form
    87,795.75/121,157.99 = 49,563.34/x
  3. Step 3: Cross multiply
    87,795.75x = 121,157.99 × 49,563.34
  4. Step 4: Simplify right side
    87,795.75x = 6,004,994,404.27
  5. Step 5: Solve for x
    x = 6,004,994,404.27/87,795.75
  6. Step 6: Final answer
    x = 68,397.33

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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.