Home / 86,982.34-120,059.25-51,183.86

Finding the Fourth Proportional to 86,982.34, 120,059.25 and 51,183.86

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Solution

The fourth proportional to 86,982.34, 120,059.25 and 51,183.86 is: 70,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.34 : 120,059.25 = 51,183.86 : x
  2. Step 2: Convert to fraction form
    86,982.34/120,059.25 = 51,183.86/x
  3. Step 3: Cross multiply
    86,982.34x = 120,059.25 × 51,183.86
  4. Step 4: Simplify right side
    86,982.34x = 6,145,095,843.71
  5. Step 5: Solve for x
    x = 6,145,095,843.71/86,982.34
  6. Step 6: Final answer
    x = 70,647.63

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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.