Home / 85,942.77-128,912.13-50,628.06

Finding the Fourth Proportional to 85,942.77, 128,912.13 and 50,628.06

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Solution

The fourth proportional to 85,942.77, 128,912.13 and 50,628.06 is: 75,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,942.77 : 128,912.13 = 50,628.06 : x
  2. Step 2: Convert to fraction form
    85,942.77/128,912.13 = 50,628.06/x
  3. Step 3: Cross multiply
    85,942.77x = 128,912.13 × 50,628.06
  4. Step 4: Simplify right side
    85,942.77x = 6,526,571,052.37
  5. Step 5: Solve for x
    x = 6,526,571,052.37/85,942.77
  6. Step 6: Final answer
    x = 75,940.90

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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.