Home / 85,226.58-127,781.55-45,743.94

Finding the Fourth Proportional to 85,226.58, 127,781.55 and 45,743.94

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Solution

The fourth proportional to 85,226.58, 127,781.55 and 45,743.94 is: 68,584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,226.58 : 127,781.55 = 45,743.94 : x
  2. Step 2: Convert to fraction form
    85,226.58/127,781.55 = 45,743.94/x
  3. Step 3: Cross multiply
    85,226.58x = 127,781.55 × 45,743.94
  4. Step 4: Simplify right side
    85,226.58x = 5,845,231,556.31
  5. Step 5: Solve for x
    x = 5,845,231,556.31/85,226.58
  6. Step 6: Final answer
    x = 68,584.61

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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.