Home / 45,474.81-68,221.46-19,179.64

Finding the Fourth Proportional to 45,474.81, 68,221.46 and 19,179.64

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Solution

The fourth proportional to 45,474.81, 68,221.46 and 19,179.64 is: 28,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,474.81 : 68,221.46 = 19,179.64 : x
  2. Step 2: Convert to fraction form
    45,474.81/68,221.46 = 19,179.64/x
  3. Step 3: Cross multiply
    45,474.81x = 68,221.46 × 19,179.64
  4. Step 4: Simplify right side
    45,474.81x = 1,308,463,043.07
  5. Step 5: Solve for x
    x = 1,308,463,043.07/45,474.81
  6. Step 6: Final answer
    x = 28,773.36

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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.