Home / 85,076.60-127,610.24-25,907.31

Finding the Fourth Proportional to 85,076.60, 127,610.24 and 25,907.31

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Solution

The fourth proportional to 85,076.60, 127,610.24 and 25,907.31 is: 38,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.60 : 127,610.24 = 25,907.31 : x
  2. Step 2: Convert to fraction form
    85,076.60/127,610.24 = 25,907.31/x
  3. Step 3: Cross multiply
    85,076.60x = 127,610.24 × 25,907.31
  4. Step 4: Simplify right side
    85,076.60x = 3,306,037,917.32
  5. Step 5: Solve for x
    x = 3,306,037,917.32/85,076.60
  6. Step 6: Final answer
    x = 38,859.55

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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.