Finding the Fourth Proportional to 75,884.15, 104,813.31 and 56,849.08
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Solution
The fourth proportional to 75,884.15, 104,813.31 and 56,849.08 is: 78,521.54
Step by Step Solution
- Step 1: Write the proportion equation
75,884.15 : 104,813.31 = 56,849.08 : x - Step 2: Convert to fraction form
75,884.15/104,813.31 = 56,849.08/x - Step 3: Cross multiply
75,884.15x = 104,813.31 × 56,849.08 - Step 4: Simplify right side
75,884.15x = 5,958,540,245.25 - Step 5: Solve for x
x = 5,958,540,245.25/75,884.15 - Step 6: Final answer
x = 78,521.54
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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.