Home / 211,850.32-317,775.38-54,078.73

Finding the Fourth Proportional to 211,850.32, 317,775.38 and 54,078.73

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Solution

The fourth proportional to 211,850.32, 317,775.38 and 54,078.73 is: 81,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,850.32 : 317,775.38 = 54,078.73 : x
  2. Step 2: Convert to fraction form
    211,850.32/317,775.38 = 54,078.73/x
  3. Step 3: Cross multiply
    211,850.32x = 317,775.38 × 54,078.73
  4. Step 4: Simplify right side
    211,850.32x = 17,184,888,975.67
  5. Step 5: Solve for x
    x = 17,184,888,975.67/211,850.32
  6. Step 6: Final answer
    x = 81,118.07

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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.