Home / 57,021.54-85,535.82-21,961.32

Finding the Fourth Proportional to 57,021.54, 85,535.82 and 21,961.32

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Solution

The fourth proportional to 57,021.54, 85,535.82 and 21,961.32 is: 32,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.54 : 85,535.82 = 21,961.32 : x
  2. Step 2: Convert to fraction form
    57,021.54/85,535.82 = 21,961.32/x
  3. Step 3: Cross multiply
    57,021.54x = 85,535.82 × 21,961.32
  4. Step 4: Simplify right side
    57,021.54x = 1,878,479,514.48
  5. Step 5: Solve for x
    x = 1,878,479,514.48/57,021.54
  6. Step 6: Final answer
    x = 32,943.33

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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.