Home / 211,020.82-316,529.86-53,249.42

Finding the Fourth Proportional to 211,020.82, 316,529.86 and 53,249.42

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Solution

The fourth proportional to 211,020.82, 316,529.86 and 53,249.42 is: 79,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,020.82 : 316,529.86 = 53,249.42 : x
  2. Step 2: Convert to fraction form
    211,020.82/316,529.86 = 53,249.42/x
  3. Step 3: Cross multiply
    211,020.82x = 316,529.86 × 53,249.42
  4. Step 4: Simplify right side
    211,020.82x = 16,855,031,457.68
  5. Step 5: Solve for x
    x = 16,855,031,457.68/211,020.82
  6. Step 6: Final answer
    x = 79,873.78

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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.