Finding the Fourth Proportional to 86,385.84, 119,211.39 and 48,660.18
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Solution
The fourth proportional to 86,385.84, 119,211.39 and 48,660.18 is: 67,150.45
Step by Step Solution
- Step 1: Write the proportion equation
86,385.84 : 119,211.39 = 48,660.18 : x - Step 2: Convert to fraction form
86,385.84/119,211.39 = 48,660.18/x - Step 3: Cross multiply
86,385.84x = 119,211.39 × 48,660.18 - Step 4: Simplify right side
86,385.84x = 5,800,847,695.45 - Step 5: Solve for x
x = 5,800,847,695.45/86,385.84 - Step 6: Final answer
x = 67,150.45
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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.