Home / 57,137.85-85,673.91-30,450.96

Finding the Fourth Proportional to 57,137.85, 85,673.91 and 30,450.96

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Solution

The fourth proportional to 57,137.85, 85,673.91 and 30,450.96 is: 45,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,137.85 : 85,673.91 = 30,450.96 : x
  2. Step 2: Convert to fraction form
    57,137.85/85,673.91 = 30,450.96/x
  3. Step 3: Cross multiply
    57,137.85x = 85,673.91 × 30,450.96
  4. Step 4: Simplify right side
    57,137.85x = 2,608,852,806.45
  5. Step 5: Solve for x
    x = 2,608,852,806.45/57,137.85
  6. Step 6: Final answer
    x = 45,658.92

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1.5x scale

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.