Finding the Fourth Proportional to 86,429.19, 119,272.28 and 48,704.79
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Solution
The fourth proportional to 86,429.19, 119,272.28 and 48,704.79 is: 67,212.61
Step by Step Solution
- Step 1: Write the proportion equation
86,429.19 : 119,272.28 = 48,704.79 : x - Step 2: Convert to fraction form
86,429.19/119,272.28 = 48,704.79/x - Step 3: Cross multiply
86,429.19x = 119,272.28 × 48,704.79 - Step 4: Simplify right side
86,429.19x = 5,809,131,350.22 - Step 5: Solve for x
x = 5,809,131,350.22/86,429.19 - Step 6: Final answer
x = 67,212.61
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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.