Finding the Fourth Proportional to 86,489.20, 119,352.80 and 48,249.92
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Solution
The fourth proportional to 86,489.20, 119,352.80 and 48,249.92 is: 66,583.61
Step by Step Solution
- Step 1: Write the proportion equation
86,489.20 : 119,352.80 = 48,249.92 : x - Step 2: Convert to fraction form
86,489.20/119,352.80 = 48,249.92/x - Step 3: Cross multiply
86,489.20x = 119,352.80 × 48,249.92 - Step 4: Simplify right side
86,489.20x = 5,758,763,051.78 - Step 5: Solve for x
x = 5,758,763,051.78/86,489.20 - Step 6: Final answer
x = 66,583.61
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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.