Finding the Fourth Proportional to 99,798.54, 137,724.98 and 54,479.49
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Solution
The fourth proportional to 99,798.54, 137,724.98 and 54,479.49 is: 75,183.33
Step by Step Solution
- Step 1: Write the proportion equation
99,798.54 : 137,724.98 = 54,479.49 : x - Step 2: Convert to fraction form
99,798.54/137,724.98 = 54,479.49/x - Step 3: Cross multiply
99,798.54x = 137,724.98 × 54,479.49 - Step 4: Simplify right side
99,798.54x = 7,503,186,398.26 - Step 5: Solve for x
x = 7,503,186,398.26/99,798.54 - Step 6: Final answer
x = 75,183.33
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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.