Finding the Fourth Proportional to 81,750.24, 122,625.60 and 56,716.80
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Solution
The fourth proportional to 81,750.24, 122,625.60 and 56,716.80 is: 85,075.37
Step by Step Solution
- Step 1: Write the proportion equation
81,750.24 : 122,625.60 = 56,716.80 : x - Step 2: Convert to fraction form
81,750.24/122,625.60 = 56,716.80/x - Step 3: Cross multiply
81,750.24x = 122,625.60 × 56,716.80 - Step 4: Simplify right side
81,750.24x = 6,954,931,630.08 - Step 5: Solve for x
x = 6,954,931,630.08/81,750.24 - Step 6: Final answer
x = 85,075.37
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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.