Home / 89,106.38-122,963.67-48,819.78

Finding the Fourth Proportional to 89,106.38, 122,963.67 and 48,819.78

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Solution

The fourth proportional to 89,106.38, 122,963.67 and 48,819.78 is: 67,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,106.38 : 122,963.67 = 48,819.78 : x
  2. Step 2: Convert to fraction form
    89,106.38/122,963.67 = 48,819.78/x
  3. Step 3: Cross multiply
    89,106.38x = 122,963.67 × 48,819.78
  4. Step 4: Simplify right side
    89,106.38x = 6,003,059,317.39
  5. Step 5: Solve for x
    x = 6,003,059,317.39/89,106.38
  6. Step 6: Final answer
    x = 67,369.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.