Finding the Fourth Proportional to 109,876.24, 164,716.64 and 39,739.96
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Solution
The fourth proportional to 109,876.24, 164,716.64 and 39,739.96 is: 59,574.60
Step by Step Solution
- Step 1: Write the proportion equation
109,876.24 : 164,716.64 = 39,739.96 : x - Step 2: Convert to fraction form
109,876.24/164,716.64 = 39,739.96/x - Step 3: Cross multiply
109,876.24x = 164,716.64 × 39,739.96 - Step 4: Simplify right side
109,876.24x = 6,545,832,684.93 - Step 5: Solve for x
x = 6,545,832,684.93/109,876.24 - Step 6: Final answer
x = 59,574.60
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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.