Finding the Fourth Proportional to 81,602.18, 122,402.84 and 44,398.74
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Solution
The fourth proportional to 81,602.18, 122,402.84 and 44,398.74 is: 66,597.88
Step by Step Solution
- Step 1: Write the proportion equation
81,602.18 : 122,402.84 = 44,398.74 : x - Step 2: Convert to fraction form
81,602.18/122,402.84 = 44,398.74/x - Step 3: Cross multiply
81,602.18x = 122,402.84 × 44,398.74 - Step 4: Simplify right side
81,602.18x = 5,434,531,952.43 - Step 5: Solve for x
x = 5,434,531,952.43/81,602.18 - Step 6: Final answer
x = 66,597.88
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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.