Home / 69,193.86-103,780.44-19,268.84

Finding the Fourth Proportional to 69,193.86, 103,780.44 and 19,268.84

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Solution

The fourth proportional to 69,193.86, 103,780.44 and 19,268.84 is: 28,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,193.86 : 103,780.44 = 19,268.84 : x
  2. Step 2: Convert to fraction form
    69,193.86/103,780.44 = 19,268.84/x
  3. Step 3: Cross multiply
    69,193.86x = 103,780.44 × 19,268.84
  4. Step 4: Simplify right side
    69,193.86x = 1,999,728,174.59
  5. Step 5: Solve for x
    x = 1,999,728,174.59/69,193.86
  6. Step 6: Final answer
    x = 28,900.37

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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.