Home / 54,642.83-81,915.62-21,355.33

Finding the Fourth Proportional to 54,642.83, 81,915.62 and 21,355.33

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Solution

The fourth proportional to 54,642.83, 81,915.62 and 21,355.33 is: 32,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,642.83 : 81,915.62 = 21,355.33 : x
  2. Step 2: Convert to fraction form
    54,642.83/81,915.62 = 21,355.33/x
  3. Step 3: Cross multiply
    54,642.83x = 81,915.62 × 21,355.33
  4. Step 4: Simplify right side
    54,642.83x = 1,749,334,945.85
  5. Step 5: Solve for x
    x = 1,749,334,945.85/54,642.83
  6. Step 6: Final answer
    x = 32,013.99

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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.