Home / 212,049.21-318,066.53-54,279.03

Finding the Fourth Proportional to 212,049.21, 318,066.53 and 54,279.03

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Solution

The fourth proportional to 212,049.21, 318,066.53 and 54,279.03 is: 81,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,049.21 : 318,066.53 = 54,279.03 : x
  2. Step 2: Convert to fraction form
    212,049.21/318,066.53 = 54,279.03/x
  3. Step 3: Cross multiply
    212,049.21x = 318,066.53 × 54,279.03
  4. Step 4: Simplify right side
    212,049.21x = 17,264,342,452.47
  5. Step 5: Solve for x
    x = 17,264,342,452.47/212,049.21
  6. Step 6: Final answer
    x = 81,416.68

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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.