Finding the Fourth Proportional to 81,841.84, 122,765.40 and 22,678.08
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Solution
The fourth proportional to 81,841.84, 122,765.40 and 22,678.08 is: 34,017.85
Step by Step Solution
- Step 1: Write the proportion equation
81,841.84 : 122,765.40 = 22,678.08 : x - Step 2: Convert to fraction form
81,841.84/122,765.40 = 22,678.08/x - Step 3: Cross multiply
81,841.84x = 122,765.40 × 22,678.08 - Step 4: Simplify right side
81,841.84x = 2,784,083,562.43 - Step 5: Solve for x
x = 2,784,083,562.43/81,841.84 - Step 6: Final answer
x = 34,017.85
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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.