Home / 85,334.19-127,905.90-31,974.84

Finding the Fourth Proportional to 85,334.19, 127,905.90 and 31,974.84

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Solution

The fourth proportional to 85,334.19, 127,905.90 and 31,974.84 is: 47,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,334.19 : 127,905.90 = 31,974.84 : x
  2. Step 2: Convert to fraction form
    85,334.19/127,905.90 = 31,974.84/x
  3. Step 3: Cross multiply
    85,334.19x = 127,905.90 × 31,974.84
  4. Step 4: Simplify right side
    85,334.19x = 4,089,770,687.56
  5. Step 5: Solve for x
    x = 4,089,770,687.56/85,334.19
  6. Step 6: Final answer
    x = 47,926.52

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1.5x scale

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.