Home / 68,821.38-103,222.35-22,068.18

Finding the Fourth Proportional to 68,821.38, 103,222.35 and 22,068.18

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Solution

The fourth proportional to 68,821.38, 103,222.35 and 22,068.18 is: 33,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,821.38 : 103,222.35 = 22,068.18 : x
  2. Step 2: Convert to fraction form
    68,821.38/103,222.35 = 22,068.18/x
  3. Step 3: Cross multiply
    68,821.38x = 103,222.35 × 22,068.18
  4. Step 4: Simplify right side
    68,821.38x = 2,277,929,399.82
  5. Step 5: Solve for x
    x = 2,277,929,399.82/68,821.38
  6. Step 6: Final answer
    x = 33,099.15

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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.