Home / 74,511.08-111,766.62-21,920.56

Finding the Fourth Proportional to 74,511.08, 111,766.62 and 21,920.56

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Solution

The fourth proportional to 74,511.08, 111,766.62 and 21,920.56 is: 32,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,511.08 : 111,766.62 = 21,920.56 : x
  2. Step 2: Convert to fraction form
    74,511.08/111,766.62 = 21,920.56/x
  3. Step 3: Cross multiply
    74,511.08x = 111,766.62 × 21,920.56
  4. Step 4: Simplify right side
    74,511.08x = 2,449,986,899.71
  5. Step 5: Solve for x
    x = 2,449,986,899.71/74,511.08
  6. Step 6: Final answer
    x = 32,880.84

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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.