Home / 69,046.21-103,571.61-19,126.81

Finding the Fourth Proportional to 69,046.21, 103,571.61 and 19,126.81

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Solution

The fourth proportional to 69,046.21, 103,571.61 and 19,126.81 is: 28,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,046.21 : 103,571.61 = 19,126.81 : x
  2. Step 2: Convert to fraction form
    69,046.21/103,571.61 = 19,126.81/x
  3. Step 3: Cross multiply
    69,046.21x = 103,571.61 × 19,126.81
  4. Step 4: Simplify right side
    69,046.21x = 1,980,994,505.86
  5. Step 5: Solve for x
    x = 1,980,994,505.86/69,046.21
  6. Step 6: Final answer
    x = 28,690.85

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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.