Home / 57,145.37-85,694.36-21,600.54

Finding the Fourth Proportional to 57,145.37, 85,694.36 and 21,600.54

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Solution

The fourth proportional to 57,145.37, 85,694.36 and 21,600.54 is: 32,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.37 : 85,694.36 = 21,600.54 : x
  2. Step 2: Convert to fraction form
    57,145.37/85,694.36 = 21,600.54/x
  3. Step 3: Cross multiply
    57,145.37x = 85,694.36 × 21,600.54
  4. Step 4: Simplify right side
    57,145.37x = 1,851,044,342.95
  5. Step 5: Solve for x
    x = 1,851,044,342.95/57,145.37
  6. Step 6: Final answer
    x = 32,391.85

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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.