Home / 212,014.96-318,020.82-54,243.16

Finding the Fourth Proportional to 212,014.96, 318,020.82 and 54,243.16

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Solution

The fourth proportional to 212,014.96, 318,020.82 and 54,243.16 is: 81,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,014.96 : 318,020.82 = 54,243.16 : x
  2. Step 2: Convert to fraction form
    212,014.96/318,020.82 = 54,243.16/x
  3. Step 3: Cross multiply
    212,014.96x = 318,020.82 × 54,243.16
  4. Step 4: Simplify right side
    212,014.96x = 17,250,454,222.59
  5. Step 5: Solve for x
    x = 17,250,454,222.59/212,014.96
  6. Step 6: Final answer
    x = 81,364.33

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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.