Home / 74,968.21-112,452.33-30,615.85

Finding the Fourth Proportional to 74,968.21, 112,452.33 and 30,615.85

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Solution

The fourth proportional to 74,968.21, 112,452.33 and 30,615.85 is: 45,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,968.21 : 112,452.33 = 30,615.85 : x
  2. Step 2: Convert to fraction form
    74,968.21/112,452.33 = 30,615.85/x
  3. Step 3: Cross multiply
    74,968.21x = 112,452.33 × 30,615.85
  4. Step 4: Simplify right side
    74,968.21x = 3,442,823,667.43
  5. Step 5: Solve for x
    x = 3,442,823,667.43/74,968.21
  6. Step 6: Final answer
    x = 45,923.78

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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.