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Finding the Fourth Proportional to 89,014.50, 122,840.01 and 49,270.50

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Solution

The fourth proportional to 89,014.50, 122,840.01 and 49,270.50 is: 67,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,014.50 : 122,840.01 = 49,270.50 : x
  2. Step 2: Convert to fraction form
    89,014.50/122,840.01 = 49,270.50/x
  3. Step 3: Cross multiply
    89,014.50x = 122,840.01 × 49,270.50
  4. Step 4: Simplify right side
    89,014.50x = 6,052,388,712.71
  5. Step 5: Solve for x
    x = 6,052,388,712.71/89,014.50
  6. Step 6: Final answer
    x = 67,993.29

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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.