Home / 60,442.26-90,639.87-20,450.53

Finding the Fourth Proportional to 60,442.26, 90,639.87 and 20,450.53

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Solution

The fourth proportional to 60,442.26, 90,639.87 and 20,450.53 is: 30,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,442.26 : 90,639.87 = 20,450.53 : x
  2. Step 2: Convert to fraction form
    60,442.26/90,639.87 = 20,450.53/x
  3. Step 3: Cross multiply
    60,442.26x = 90,639.87 × 20,450.53
  4. Step 4: Simplify right side
    60,442.26x = 1,853,633,380.63
  5. Step 5: Solve for x
    x = 1,853,633,380.63/60,442.26
  6. Step 6: Final answer
    x = 30,667.84

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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.