Home / 211,932.72-317,899.20-54,161.32

Finding the Fourth Proportional to 211,932.72, 317,899.20 and 54,161.32

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Solution

The fourth proportional to 211,932.72, 317,899.20 and 54,161.32 is: 81,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,932.72 : 317,899.20 = 54,161.32 : x
  2. Step 2: Convert to fraction form
    211,932.72/317,899.20 = 54,161.32/x
  3. Step 3: Cross multiply
    211,932.72x = 317,899.20 × 54,161.32
  4. Step 4: Simplify right side
    211,932.72x = 17,217,840,298.94
  5. Step 5: Solve for x
    x = 17,217,840,298.94/211,932.72
  6. Step 6: Final answer
    x = 81,242.01

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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.