Home / 89,790.99-123,916.80-49,513.33

Finding the Fourth Proportional to 89,790.99, 123,916.80 and 49,513.33

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Solution

The fourth proportional to 89,790.99, 123,916.80 and 49,513.33 is: 68,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,790.99 : 123,916.80 = 49,513.33 : x
  2. Step 2: Convert to fraction form
    89,790.99/123,916.80 = 49,513.33/x
  3. Step 3: Cross multiply
    89,790.99x = 123,916.80 × 49,513.33
  4. Step 4: Simplify right side
    89,790.99x = 6,135,533,410.94
  5. Step 5: Solve for x
    x = 6,135,533,410.94/89,790.99
  6. Step 6: Final answer
    x = 68,331.28

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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.