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Finding the Fourth Proportional to 101,014.74, 139,399.74 and 55,692.54

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Solution

The fourth proportional to 101,014.74, 139,399.74 and 55,692.54 is: 76,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,014.74 : 139,399.74 = 55,692.54 : x
  2. Step 2: Convert to fraction form
    101,014.74/139,399.74 = 55,692.54/x
  3. Step 3: Cross multiply
    101,014.74x = 139,399.74 × 55,692.54
  4. Step 4: Simplify right side
    101,014.74x = 7,763,525,595.94
  5. Step 5: Solve for x
    x = 7,763,525,595.94/101,014.74
  6. Step 6: Final answer
    x = 76,855.37

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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.