Home / 89,772.91-123,887.00-49,485.80

Finding the Fourth Proportional to 89,772.91, 123,887.00 and 49,485.80

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Solution

The fourth proportional to 89,772.91, 123,887.00 and 49,485.80 is: 68,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772.91 : 123,887.00 = 49,485.80 : x
  2. Step 2: Convert to fraction form
    89,772.91/123,887.00 = 49,485.80/x
  3. Step 3: Cross multiply
    89,772.91x = 123,887.00 × 49,485.80
  4. Step 4: Simplify right side
    89,772.91x = 6,130,647,738.03
  5. Step 5: Solve for x
    x = 6,130,647,738.03/89,772.91
  6. Step 6: Final answer
    x = 68,290.62

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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.