Finding the Fourth Proportional to 89,855.40, 134,765.48 and 29,874.49
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Solution
The fourth proportional to 89,855.40, 134,765.48 and 29,874.49 is: 44,805.88
Step by Step Solution
- Step 1: Write the proportion equation
89,855.40 : 134,765.48 = 29,874.49 : x - Step 2: Convert to fraction form
89,855.40/134,765.48 = 29,874.49/x - Step 3: Cross multiply
89,855.40x = 134,765.48 × 29,874.49 - Step 4: Simplify right side
89,855.40x = 4,026,049,835.23 - Step 5: Solve for x
x = 4,026,049,835.23/89,855.40 - Step 6: Final answer
x = 44,805.88
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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.