Home / 83,222.19-124,821-30,619.44

Finding the Fourth Proportional to 83,222.19, 124,821 and 30,619.44

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Solution

The fourth proportional to 83,222.19, 124,821 and 30,619.44 is: 45,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,222.19 : 124,821 = 30,619.44 : x
  2. Step 2: Convert to fraction form
    83,222.19/124,821 = 30,619.44/x
  3. Step 3: Cross multiply
    83,222.19x = 124,821 × 30,619.44
  4. Step 4: Simplify right side
    83,222.19x = 3,821,949,120.24
  5. Step 5: Solve for x
    x = 3,821,949,120.24/83,222.19
  6. Step 6: Final answer
    x = 45,924.64

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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.