Home / 55,107.82-76,047.94-30,908.78

Finding the Fourth Proportional to 55,107.82, 76,047.94 and 30,908.78

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Solution

The fourth proportional to 55,107.82, 76,047.94 and 30,908.78 is: 42,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,107.82 : 76,047.94 = 30,908.78 : x
  2. Step 2: Convert to fraction form
    55,107.82/76,047.94 = 30,908.78/x
  3. Step 3: Cross multiply
    55,107.82x = 76,047.94 × 30,908.78
  4. Step 4: Simplify right side
    55,107.82x = 2,350,548,990.49
  5. Step 5: Solve for x
    x = 2,350,548,990.49/55,107.82
  6. Step 6: Final answer
    x = 42,653.64

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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.