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Finding the Fourth Proportional to 89,104, 122,963.52 and 49,360

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Solution

The fourth proportional to 89,104, 122,963.52 and 49,360 is: 68,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,104 : 122,963.52 = 49,360 : x
  2. Step 2: Convert to fraction form
    89,104/122,963.52 = 49,360/x
  3. Step 3: Cross multiply
    89,104x = 122,963.52 × 49,360
  4. Step 4: Simplify right side
    89,104x = 6,069,479,347.20
  5. Step 5: Solve for x
    x = 6,069,479,347.20/89,104
  6. Step 6: Final answer
    x = 68,116.80

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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.