Home / 85,201.58-117,590.46-51,198.86

Finding the Fourth Proportional to 85,201.58, 117,590.46 and 51,198.86

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Solution

The fourth proportional to 85,201.58, 117,590.46 and 51,198.86 is: 70,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,201.58 : 117,590.46 = 51,198.86 : x
  2. Step 2: Convert to fraction form
    85,201.58/117,590.46 = 51,198.86/x
  3. Step 3: Cross multiply
    85,201.58x = 117,590.46 × 51,198.86
  4. Step 4: Simplify right side
    85,201.58x = 6,020,497,498.88
  5. Step 5: Solve for x
    x = 6,020,497,498.88/85,201.58
  6. Step 6: Final answer
    x = 70,661.81

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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.