Home / 54,451.92-81,709.52-21,194.96

Finding the Fourth Proportional to 54,451.92, 81,709.52 and 21,194.96

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Solution

The fourth proportional to 54,451.92, 81,709.52 and 21,194.96 is: 31,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,451.92 : 81,709.52 = 21,194.96 : x
  2. Step 2: Convert to fraction form
    54,451.92/81,709.52 = 21,194.96/x
  3. Step 3: Cross multiply
    54,451.92x = 81,709.52 × 21,194.96
  4. Step 4: Simplify right side
    54,451.92x = 1,731,830,008.02
  5. Step 5: Solve for x
    x = 1,731,830,008.02/54,451.92
  6. Step 6: Final answer
    x = 31,804.76

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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.