Finding the Fourth Proportional to 72,043.48, 107,991.32 and 27,658.28
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Solution
The fourth proportional to 72,043.48, 107,991.32 and 27,658.28 is: 41,459.05
Step by Step Solution
- Step 1: Write the proportion equation
72,043.48 : 107,991.32 = 27,658.28 : x - Step 2: Convert to fraction form
72,043.48/107,991.32 = 27,658.28/x - Step 3: Cross multiply
72,043.48x = 107,991.32 × 27,658.28 - Step 4: Simplify right side
72,043.48x = 2,986,854,166.13 - Step 5: Solve for x
x = 2,986,854,166.13/72,043.48 - Step 6: Final answer
x = 41,459.05
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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.