Home / 89,103.45-122,963.85-50,868.21

Finding the Fourth Proportional to 89,103.45, 122,963.85 and 50,868.21

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Solution

The fourth proportional to 89,103.45, 122,963.85 and 50,868.21 is: 70,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,103.45 : 122,963.85 = 50,868.21 : x
  2. Step 2: Convert to fraction form
    89,103.45/122,963.85 = 50,868.21/x
  3. Step 3: Cross multiply
    89,103.45x = 122,963.85 × 50,868.21
  4. Step 4: Simplify right side
    89,103.45x = 6,254,950,944.21
  5. Step 5: Solve for x
    x = 6,254,950,944.21/89,103.45
  6. Step 6: Final answer
    x = 70,198.75

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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.