Home / 54,533.39-81,779.09-21,249.07

Finding the Fourth Proportional to 54,533.39, 81,779.09 and 21,249.07

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Solution

The fourth proportional to 54,533.39, 81,779.09 and 21,249.07 is: 31,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,533.39 : 81,779.09 = 21,249.07 : x
  2. Step 2: Convert to fraction form
    54,533.39/81,779.09 = 21,249.07/x
  3. Step 3: Cross multiply
    54,533.39x = 81,779.09 × 21,249.07
  4. Step 4: Simplify right side
    54,533.39x = 1,737,729,297.25
  5. Step 5: Solve for x
    x = 1,737,729,297.25/54,533.39
  6. Step 6: Final answer
    x = 31,865.42

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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.