Home / 57,082.12-78,771.72-31,589.54

Finding the Fourth Proportional to 57,082.12, 78,771.72 and 31,589.54

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Solution

The fourth proportional to 57,082.12, 78,771.72 and 31,589.54 is: 43,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,082.12 : 78,771.72 = 31,589.54 : x
  2. Step 2: Convert to fraction form
    57,082.12/78,771.72 = 31,589.54/x
  3. Step 3: Cross multiply
    57,082.12x = 78,771.72 × 31,589.54
  4. Step 4: Simplify right side
    57,082.12x = 2,488,362,596.36
  5. Step 5: Solve for x
    x = 2,488,362,596.36/57,082.12
  6. Step 6: Final answer
    x = 43,592.68

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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.