Finding the Fourth Proportional to 75,069.21, 103,604.91 and 49,249.44
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Solution
The fourth proportional to 75,069.21, 103,604.91 and 49,249.44 is: 67,970.39
Step by Step Solution
- Step 1: Write the proportion equation
75,069.21 : 103,604.91 = 49,249.44 : x - Step 2: Convert to fraction form
75,069.21/103,604.91 = 49,249.44/x - Step 3: Cross multiply
75,069.21x = 103,604.91 × 49,249.44 - Step 4: Simplify right side
75,069.21x = 5,102,483,798.75 - Step 5: Solve for x
x = 5,102,483,798.75/75,069.21 - Step 6: Final answer
x = 67,970.39
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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.