Home / 212,054.26-318,081.20-54,282.46

Finding the Fourth Proportional to 212,054.26, 318,081.20 and 54,282.46

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Solution

The fourth proportional to 212,054.26, 318,081.20 and 54,282.46 is: 81,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,054.26 : 318,081.20 = 54,282.46 : x
  2. Step 2: Convert to fraction form
    212,054.26/318,081.20 = 54,282.46/x
  3. Step 3: Cross multiply
    212,054.26x = 318,081.20 × 54,282.46
  4. Step 4: Simplify right side
    212,054.26x = 17,266,230,015.75
  5. Step 5: Solve for x
    x = 17,266,230,015.75/212,054.26
  6. Step 6: Final answer
    x = 81,423.64

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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.