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Finding the Fourth Proportional to 89,804.75, 123,927.90 and 49,518.50

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Solution

The fourth proportional to 89,804.75, 123,927.90 and 49,518.50 is: 68,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,804.75 : 123,927.90 = 49,518.50 : x
  2. Step 2: Convert to fraction form
    89,804.75/123,927.90 = 49,518.50/x
  3. Step 3: Cross multiply
    89,804.75x = 123,927.90 × 49,518.50
  4. Step 4: Simplify right side
    89,804.75x = 6,136,723,375.55
  5. Step 5: Solve for x
    x = 6,136,723,375.55/89,804.75
  6. Step 6: Final answer
    x = 68,334.07

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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.