Finding the Fourth Proportional to 85,716.99, 128,583.92 and 29,549.70
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Solution
The fourth proportional to 85,716.99, 128,583.92 and 29,549.70 is: 44,327.46
Step by Step Solution
- Step 1: Write the proportion equation
85,716.99 : 128,583.92 = 29,549.70 : x - Step 2: Convert to fraction form
85,716.99/128,583.92 = 29,549.70/x - Step 3: Cross multiply
85,716.99x = 128,583.92 × 29,549.70 - Step 4: Simplify right side
85,716.99x = 3,799,616,334.70 - Step 5: Solve for x
x = 3,799,616,334.70/85,716.99 - Step 6: Final answer
x = 44,327.46
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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.