Home / 85,936.20-128,898.36-26,766.24

Finding the Fourth Proportional to 85,936.20, 128,898.36 and 26,766.24

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Solution

The fourth proportional to 85,936.20, 128,898.36 and 26,766.24 is: 40,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,936.20 : 128,898.36 = 26,766.24 : x
  2. Step 2: Convert to fraction form
    85,936.20/128,898.36 = 26,766.24/x
  3. Step 3: Cross multiply
    85,936.20x = 128,898.36 × 26,766.24
  4. Step 4: Simplify right side
    85,936.20x = 3,450,124,439.37
  5. Step 5: Solve for x
    x = 3,450,124,439.37/85,936.20
  6. Step 6: Final answer
    x = 40,147.51

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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.