Finding the Fourth Proportional to 89,079.15, 122,929.20 and 48,795.42
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Solution
The fourth proportional to 89,079.15, 122,929.20 and 48,795.42 is: 67,337.66
Step by Step Solution
- Step 1: Write the proportion equation
89,079.15 : 122,929.20 = 48,795.42 : x - Step 2: Convert to fraction form
89,079.15/122,929.20 = 48,795.42/x - Step 3: Cross multiply
89,079.15x = 122,929.20 × 48,795.42 - Step 4: Simplify right side
89,079.15x = 5,998,381,944.26 - Step 5: Solve for x
x = 5,998,381,944.26/89,079.15 - Step 6: Final answer
x = 67,337.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.