Home / 75,379.44-113,066.34-30,420.24

Finding the Fourth Proportional to 75,379.44, 113,066.34 and 30,420.24

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Solution

The fourth proportional to 75,379.44, 113,066.34 and 30,420.24 is: 45,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,379.44 : 113,066.34 = 30,420.24 : x
  2. Step 2: Convert to fraction form
    75,379.44/113,066.34 = 30,420.24/x
  3. Step 3: Cross multiply
    75,379.44x = 113,066.34 × 30,420.24
  4. Step 4: Simplify right side
    75,379.44x = 3,439,505,198.72
  5. Step 5: Solve for x
    x = 3,439,505,198.72/75,379.44
  6. Step 6: Final answer
    x = 45,629.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.