Home / 57,028.72-78,696.21-31,533.55

Finding the Fourth Proportional to 57,028.72, 78,696.21 and 31,533.55

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Solution

The fourth proportional to 57,028.72, 78,696.21 and 31,533.55 is: 43,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.72 : 78,696.21 = 31,533.55 : x
  2. Step 2: Convert to fraction form
    57,028.72/78,696.21 = 31,533.55/x
  3. Step 3: Cross multiply
    57,028.72x = 78,696.21 × 31,533.55
  4. Step 4: Simplify right side
    57,028.72x = 2,481,570,872.85
  5. Step 5: Solve for x
    x = 2,481,570,872.85/57,028.72
  6. Step 6: Final answer
    x = 43,514.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.