Home / 85,635.04-118,183.44-47,912.80

Finding the Fourth Proportional to 85,635.04, 118,183.44 and 47,912.80

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Solution

The fourth proportional to 85,635.04, 118,183.44 and 47,912.80 is: 66,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,635.04 : 118,183.44 = 47,912.80 : x
  2. Step 2: Convert to fraction form
    85,635.04/118,183.44 = 47,912.80/x
  3. Step 3: Cross multiply
    85,635.04x = 118,183.44 × 47,912.80
  4. Step 4: Simplify right side
    85,635.04x = 5,662,499,524.03
  5. Step 5: Solve for x
    x = 5,662,499,524.03/85,635.04
  6. Step 6: Final answer
    x = 66,123.63

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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.