Home / 55,138.06-76,065.96-36,745.30

Finding the Fourth Proportional to 55,138.06, 76,065.96 and 36,745.30

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Solution

The fourth proportional to 55,138.06, 76,065.96 and 36,745.30 is: 50,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,138.06 : 76,065.96 = 36,745.30 : x
  2. Step 2: Convert to fraction form
    55,138.06/76,065.96 = 36,745.30/x
  3. Step 3: Cross multiply
    55,138.06x = 76,065.96 × 36,745.30
  4. Step 4: Simplify right side
    55,138.06x = 2,795,066,519.99
  5. Step 5: Solve for x
    x = 2,795,066,519.99/55,138.06
  6. Step 6: Final answer
    x = 50,692.14

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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.