Home / 211,850.17-317,775.15-54,078.57

Finding the Fourth Proportional to 211,850.17, 317,775.15 and 54,078.57

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Solution

The fourth proportional to 211,850.17, 317,775.15 and 54,078.57 is: 81,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,850.17 : 317,775.15 = 54,078.57 : x
  2. Step 2: Convert to fraction form
    211,850.17/317,775.15 = 54,078.57/x
  3. Step 3: Cross multiply
    211,850.17x = 317,775.15 × 54,078.57
  4. Step 4: Simplify right side
    211,850.17x = 17,184,825,693.54
  5. Step 5: Solve for x
    x = 17,184,825,693.54/211,850.17
  6. Step 6: Final answer
    x = 81,117.83

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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.