Home / 211,849.98-317,774.87-54,078.39

Finding the Fourth Proportional to 211,849.98, 317,774.87 and 54,078.39

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Solution

The fourth proportional to 211,849.98, 317,774.87 and 54,078.39 is: 81,117.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,849.98 : 317,774.87 = 54,078.39 : x
  2. Step 2: Convert to fraction form
    211,849.98/317,774.87 = 54,078.39/x
  3. Step 3: Cross multiply
    211,849.98x = 317,774.87 × 54,078.39
  4. Step 4: Simplify right side
    211,849.98x = 17,184,753,081.67
  5. Step 5: Solve for x
    x = 17,184,753,081.67/211,849.98
  6. Step 6: Final answer
    x = 81,117.56

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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.