Home / 85,731.20-118,305.60-49,922.24

Finding the Fourth Proportional to 85,731.20, 118,305.60 and 49,922.24

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Solution

The fourth proportional to 85,731.20, 118,305.60 and 49,922.24 is: 68,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.20 : 118,305.60 = 49,922.24 : x
  2. Step 2: Convert to fraction form
    85,731.20/118,305.60 = 49,922.24/x
  3. Step 3: Cross multiply
    85,731.20x = 118,305.60 × 49,922.24
  4. Step 4: Simplify right side
    85,731.20x = 5,906,080,556.54
  5. Step 5: Solve for x
    x = 5,906,080,556.54/85,731.20
  6. Step 6: Final answer
    x = 68,890.68

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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.