Home / 87,816.15-121,183.61-49,577.13

Finding the Fourth Proportional to 87,816.15, 121,183.61 and 49,577.13

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Solution

The fourth proportional to 87,816.15, 121,183.61 and 49,577.13 is: 68,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.15 : 121,183.61 = 49,577.13 : x
  2. Step 2: Convert to fraction form
    87,816.15/121,183.61 = 49,577.13/x
  3. Step 3: Cross multiply
    87,816.15x = 121,183.61 × 49,577.13
  4. Step 4: Simplify right side
    87,816.15x = 6,007,935,338.95
  5. Step 5: Solve for x
    x = 6,007,935,338.95/87,816.15
  6. Step 6: Final answer
    x = 68,414.93

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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.