Finding the Fourth Proportional to 86,509.18, 129,782.99 and 26,546.00
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Solution
The fourth proportional to 86,509.18, 129,782.99 and 26,546.00 is: 39,824.89
Step by Step Solution
- Step 1: Write the proportion equation
86,509.18 : 129,782.99 = 26,546.00 : x - Step 2: Convert to fraction form
86,509.18/129,782.99 = 26,546.00/x - Step 3: Cross multiply
86,509.18x = 129,782.99 × 26,546.00 - Step 4: Simplify right side
86,509.18x = 3,445,218,669.99 - Step 5: Solve for x
x = 3,445,218,669.99/86,509.18 - Step 6: Final answer
x = 39,824.89
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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.