Finding the Fourth Proportional to 81,444.68, 122,173.27 and 27,409.63
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Solution
The fourth proportional to 81,444.68, 122,173.27 and 27,409.63 is: 41,116.55
Step by Step Solution
- Step 1: Write the proportion equation
81,444.68 : 122,173.27 = 27,409.63 : x - Step 2: Convert to fraction form
81,444.68/122,173.27 = 27,409.63/x - Step 3: Cross multiply
81,444.68x = 122,173.27 × 27,409.63 - Step 4: Simplify right side
81,444.68x = 3,348,724,058.80 - Step 5: Solve for x
x = 3,348,724,058.80/81,444.68 - Step 6: Final answer
x = 41,116.55
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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.