Finding the Fourth Proportional to 68,488.09, 102,727.56 and 21,737.32
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Solution
The fourth proportional to 68,488.09, 102,727.56 and 21,737.32 is: 32,604.53
Step by Step Solution
- Step 1: Write the proportion equation
68,488.09 : 102,727.56 = 21,737.32 : x - Step 2: Convert to fraction form
68,488.09/102,727.56 = 21,737.32/x - Step 3: Cross multiply
68,488.09x = 102,727.56 × 21,737.32 - Step 4: Simplify right side
68,488.09x = 2,233,021,844.54 - Step 5: Solve for x
x = 2,233,021,844.54/68,488.09 - Step 6: Final answer
x = 32,604.53
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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.