Home / 55,940.84-77,198.36-30,447.30

Finding the Fourth Proportional to 55,940.84, 77,198.36 and 30,447.30

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Solution

The fourth proportional to 55,940.84, 77,198.36 and 30,447.30 is: 42,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.84 : 77,198.36 = 30,447.30 : x
  2. Step 2: Convert to fraction form
    55,940.84/77,198.36 = 30,447.30/x
  3. Step 3: Cross multiply
    55,940.84x = 77,198.36 × 30,447.30
  4. Step 4: Simplify right side
    55,940.84x = 2,350,481,474.19
  5. Step 5: Solve for x
    x = 2,350,481,474.19/55,940.84
  6. Step 6: Final answer
    x = 42,017.28

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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.