Home / 45,431.66-68,198.62-19,158.50

Finding the Fourth Proportional to 45,431.66, 68,198.62 and 19,158.50

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Solution

The fourth proportional to 45,431.66, 68,198.62 and 19,158.50 is: 28,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.66 : 68,198.62 = 19,158.50 : x
  2. Step 2: Convert to fraction form
    45,431.66/68,198.62 = 19,158.50/x
  3. Step 3: Cross multiply
    45,431.66x = 68,198.62 × 19,158.50
  4. Step 4: Simplify right side
    45,431.66x = 1,306,583,261.27
  5. Step 5: Solve for x
    x = 1,306,583,261.27/45,431.66
  6. Step 6: Final answer
    x = 28,759.31

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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.