Home / 211,933.72-317,900.70-54,162.32

Finding the Fourth Proportional to 211,933.72, 317,900.70 and 54,162.32

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Solution

The fourth proportional to 211,933.72, 317,900.70 and 54,162.32 is: 81,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,933.72 : 317,900.70 = 54,162.32 : x
  2. Step 2: Convert to fraction form
    211,933.72/317,900.70 = 54,162.32/x
  3. Step 3: Cross multiply
    211,933.72x = 317,900.70 × 54,162.32
  4. Step 4: Simplify right side
    211,933.72x = 17,218,239,441.62
  5. Step 5: Solve for x
    x = 17,218,239,441.62/211,933.72
  6. Step 6: Final answer
    x = 81,243.51

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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.