Home / 69,938.07-104,907.83-55,986.78

Finding the Fourth Proportional to 69,938.07, 104,907.83 and 55,986.78

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Solution

The fourth proportional to 69,938.07, 104,907.83 and 55,986.78 is: 83,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,938.07 : 104,907.83 = 55,986.78 : x
  2. Step 2: Convert to fraction form
    69,938.07/104,907.83 = 55,986.78/x
  3. Step 3: Cross multiply
    69,938.07x = 104,907.83 × 55,986.78
  4. Step 4: Simplify right side
    69,938.07x = 5,873,451,121.85
  5. Step 5: Solve for x
    x = 5,873,451,121.85/69,938.07
  6. Step 6: Final answer
    x = 83,980.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.