Home / 89,790.64-123,916.65-49,504.33

Finding the Fourth Proportional to 89,790.64, 123,916.65 and 49,504.33

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Solution

The fourth proportional to 89,790.64, 123,916.65 and 49,504.33 is: 68,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,790.64 : 123,916.65 = 49,504.33 : x
  2. Step 2: Convert to fraction form
    89,790.64/123,916.65 = 49,504.33/x
  3. Step 3: Cross multiply
    89,790.64x = 123,916.65 × 49,504.33
  4. Step 4: Simplify right side
    89,790.64x = 6,134,410,734.09
  5. Step 5: Solve for x
    x = 6,134,410,734.09/89,790.64
  6. Step 6: Final answer
    x = 68,319.04

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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.