Finding the Fourth Proportional to 86,520.24, 129,779.54 and 27,355.92
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Solution
The fourth proportional to 86,520.24, 129,779.54 and 27,355.92 is: 41,033.62
Step by Step Solution
- Step 1: Write the proportion equation
86,520.24 : 129,779.54 = 27,355.92 : x - Step 2: Convert to fraction form
86,520.24/129,779.54 = 27,355.92/x - Step 3: Cross multiply
86,520.24x = 129,779.54 × 27,355.92 - Step 4: Simplify right side
86,520.24x = 3,550,238,713.88 - Step 5: Solve for x
x = 3,550,238,713.88/86,520.24 - Step 6: Final answer
x = 41,033.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.