Finding the Fourth Proportional to 86,449.20, 119,310.15 and 48,214.98
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Solution
The fourth proportional to 86,449.20, 119,310.15 and 48,214.98 is: 66,542.39
Step by Step Solution
- Step 1: Write the proportion equation
86,449.20 : 119,310.15 = 48,214.98 : x - Step 2: Convert to fraction form
86,449.20/119,310.15 = 48,214.98/x - Step 3: Cross multiply
86,449.20x = 119,310.15 × 48,214.98 - Step 4: Simplify right side
86,449.20x = 5,752,536,496.05 - Step 5: Solve for x
x = 5,752,536,496.05/86,449.20 - Step 6: Final answer
x = 66,542.39
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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.