Home / 51,682.16-71,321.82-30,186.92

Finding the Fourth Proportional to 51,682.16, 71,321.82 and 30,186.92

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Solution

The fourth proportional to 51,682.16, 71,321.82 and 30,186.92 is: 41,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,682.16 : 71,321.82 = 30,186.92 : x
  2. Step 2: Convert to fraction form
    51,682.16/71,321.82 = 30,186.92/x
  3. Step 3: Cross multiply
    51,682.16x = 71,321.82 × 30,186.92
  4. Step 4: Simplify right side
    51,682.16x = 2,152,986,074.59
  5. Step 5: Solve for x
    x = 2,152,986,074.59/51,682.16
  6. Step 6: Final answer
    x = 41,658.21

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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.