Home / 81,076.44-111,884.40-45,267

Finding the Fourth Proportional to 81,076.44, 111,884.40 and 45,267

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Solution

The fourth proportional to 81,076.44, 111,884.40 and 45,267 is: 62,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,076.44 : 111,884.40 = 45,267 : x
  2. Step 2: Convert to fraction form
    81,076.44/111,884.40 = 45,267/x
  3. Step 3: Cross multiply
    81,076.44x = 111,884.40 × 45,267
  4. Step 4: Simplify right side
    81,076.44x = 5,064,671,134.80
  5. Step 5: Solve for x
    x = 5,064,671,134.80/81,076.44
  6. Step 6: Final answer
    x = 62,467.85

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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.