Home / 85,493.24-128,239.83-23,163.74

Finding the Fourth Proportional to 85,493.24, 128,239.83 and 23,163.74

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Solution

The fourth proportional to 85,493.24, 128,239.83 and 23,163.74 is: 34,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,493.24 : 128,239.83 = 23,163.74 : x
  2. Step 2: Convert to fraction form
    85,493.24/128,239.83 = 23,163.74/x
  3. Step 3: Cross multiply
    85,493.24x = 128,239.83 × 23,163.74
  4. Step 4: Simplify right side
    85,493.24x = 2,970,513,438.57
  5. Step 5: Solve for x
    x = 2,970,513,438.57/85,493.24
  6. Step 6: Final answer
    x = 34,745.60

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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.