Home / 87,741.97-121,083.94-49,509.63

Finding the Fourth Proportional to 87,741.97, 121,083.94 and 49,509.63

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Solution

The fourth proportional to 87,741.97, 121,083.94 and 49,509.63 is: 68,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,741.97 : 121,083.94 = 49,509.63 : x
  2. Step 2: Convert to fraction form
    87,741.97/121,083.94 = 49,509.63/x
  3. Step 3: Cross multiply
    87,741.97x = 121,083.94 × 49,509.63
  4. Step 4: Simplify right side
    87,741.97x = 5,994,821,247.28
  5. Step 5: Solve for x
    x = 5,994,821,247.28/87,741.97
  6. Step 6: Final answer
    x = 68,323.30

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1.5x scale

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.