Finding the Fourth Proportional to 71,813.80, 107,765.58 and 27,444.40
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Solution
The fourth proportional to 71,813.80, 107,765.58 and 27,444.40 is: 41,183.75
Step by Step Solution
- Step 1: Write the proportion equation
71,813.80 : 107,765.58 = 27,444.40 : x - Step 2: Convert to fraction form
71,813.80/107,765.58 = 27,444.40/x - Step 3: Cross multiply
71,813.80x = 107,765.58 × 27,444.40 - Step 4: Simplify right side
71,813.80x = 2,957,561,683.75 - Step 5: Solve for x
x = 2,957,561,683.75/71,813.80 - Step 6: Final answer
x = 41,183.75
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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.