Home / 54,633.96-81,947.16-21,347.64

Finding the Fourth Proportional to 54,633.96, 81,947.16 and 21,347.64

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Solution

The fourth proportional to 54,633.96, 81,947.16 and 21,347.64 is: 32,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,633.96 : 81,947.16 = 21,347.64 : x
  2. Step 2: Convert to fraction form
    54,633.96/81,947.16 = 21,347.64/x
  3. Step 3: Cross multiply
    54,633.96x = 81,947.16 × 21,347.64
  4. Step 4: Simplify right side
    54,633.96x = 1,749,378,470.70
  5. Step 5: Solve for x
    x = 1,749,378,470.70/54,633.96
  6. Step 6: Final answer
    x = 32,019.98

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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.