Home / 54,231.44-81,347.64-19,171.60

Finding the Fourth Proportional to 54,231.44, 81,347.64 and 19,171.60

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Solution

The fourth proportional to 54,231.44, 81,347.64 and 19,171.60 is: 28,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,231.44 : 81,347.64 = 19,171.60 : x
  2. Step 2: Convert to fraction form
    54,231.44/81,347.64 = 19,171.60/x
  3. Step 3: Cross multiply
    54,231.44x = 81,347.64 × 19,171.60
  4. Step 4: Simplify right side
    54,231.44x = 1,559,564,415.02
  5. Step 5: Solve for x
    x = 1,559,564,415.02/54,231.44
  6. Step 6: Final answer
    x = 28,757.57

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1.5x scale

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.