Home / 54,101.52-81,123.12-19,014.75

Finding the Fourth Proportional to 54,101.52, 81,123.12 and 19,014.75

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Solution

The fourth proportional to 54,101.52, 81,123.12 and 19,014.75 is: 28,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,101.52 : 81,123.12 = 19,014.75 : x
  2. Step 2: Convert to fraction form
    54,101.52/81,123.12 = 19,014.75/x
  3. Step 3: Cross multiply
    54,101.52x = 81,123.12 × 19,014.75
  4. Step 4: Simplify right side
    54,101.52x = 1,542,535,846.02
  5. Step 5: Solve for x
    x = 1,542,535,846.02/54,101.52
  6. Step 6: Final answer
    x = 28,511.88

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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.