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Finding the Fourth Proportional to 54,589.30, 81,879.63 and 19,525.30

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Solution

The fourth proportional to 54,589.30, 81,879.63 and 19,525.30 is: 29,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,589.30 : 81,879.63 = 19,525.30 : x
  2. Step 2: Convert to fraction form
    54,589.30/81,879.63 = 19,525.30/x
  3. Step 3: Cross multiply
    54,589.30x = 81,879.63 × 19,525.30
  4. Step 4: Simplify right side
    54,589.30x = 1,598,724,339.64
  5. Step 5: Solve for x
    x = 1,598,724,339.64/54,589.30
  6. Step 6: Final answer
    x = 29,286.40

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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.