Home / 89,219.39-133,786.71-51,790.94

Finding the Fourth Proportional to 89,219.39, 133,786.71 and 51,790.94

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Solution

The fourth proportional to 89,219.39, 133,786.71 and 51,790.94 is: 77,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.39 : 133,786.71 = 51,790.94 : x
  2. Step 2: Convert to fraction form
    89,219.39/133,786.71 = 51,790.94/x
  3. Step 3: Cross multiply
    89,219.39x = 133,786.71 × 51,790.94
  4. Step 4: Simplify right side
    89,219.39x = 6,928,939,804.87
  5. Step 5: Solve for x
    x = 6,928,939,804.87/89,219.39
  6. Step 6: Final answer
    x = 77,661.81

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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.