Home / 57,989.38-79,847.40-50,778.04

Finding the Fourth Proportional to 57,989.38, 79,847.40 and 50,778.04

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Solution

The fourth proportional to 57,989.38, 79,847.40 and 50,778.04 is: 69,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989.38 : 79,847.40 = 50,778.04 : x
  2. Step 2: Convert to fraction form
    57,989.38/79,847.40 = 50,778.04/x
  3. Step 3: Cross multiply
    57,989.38x = 79,847.40 × 50,778.04
  4. Step 4: Simplify right side
    57,989.38x = 4,054,494,471.10
  5. Step 5: Solve for x
    x = 4,054,494,471.10/57,989.38
  6. Step 6: Final answer
    x = 69,917.88

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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.