Home / 75,311.42-103,918.02-43,474.19

Finding the Fourth Proportional to 75,311.42, 103,918.02 and 43,474.19

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Solution

The fourth proportional to 75,311.42, 103,918.02 and 43,474.19 is: 59,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.42 : 103,918.02 = 43,474.19 : x
  2. Step 2: Convert to fraction form
    75,311.42/103,918.02 = 43,474.19/x
  3. Step 3: Cross multiply
    75,311.42x = 103,918.02 × 43,474.19
  4. Step 4: Simplify right side
    75,311.42x = 4,517,751,745.90
  5. Step 5: Solve for x
    x = 4,517,751,745.90/75,311.42
  6. Step 6: Final answer
    x = 59,987.61

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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.