Home / 89,103.75-122,963.18-49,359.75

Finding the Fourth Proportional to 89,103.75, 122,963.18 and 49,359.75

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Solution

The fourth proportional to 89,103.75, 122,963.18 and 49,359.75 is: 68,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,103.75 : 122,963.18 = 49,359.75 : x
  2. Step 2: Convert to fraction form
    89,103.75/122,963.18 = 49,359.75/x
  3. Step 3: Cross multiply
    89,103.75x = 122,963.18 × 49,359.75
  4. Step 4: Simplify right side
    89,103.75x = 6,069,431,824.01
  5. Step 5: Solve for x
    x = 6,069,431,824.01/89,103.75
  6. Step 6: Final answer
    x = 68,116.46

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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.