Home / 89,072.09-122,917.11-50,830.93

Finding the Fourth Proportional to 89,072.09, 122,917.11 and 50,830.93

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Solution

The fourth proportional to 89,072.09, 122,917.11 and 50,830.93 is: 70,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072.09 : 122,917.11 = 50,830.93 : x
  2. Step 2: Convert to fraction form
    89,072.09/122,917.11 = 50,830.93/x
  3. Step 3: Cross multiply
    89,072.09x = 122,917.11 × 50,830.93
  4. Step 4: Simplify right side
    89,072.09x = 6,247,990,399.63
  5. Step 5: Solve for x
    x = 6,247,990,399.63/89,072.09
  6. Step 6: Final answer
    x = 70,145.33

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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.