Finding the Fourth Proportional to 99,919.09, 137,886.68 and 54,596.08
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Solution
The fourth proportional to 99,919.09, 137,886.68 and 54,596.08 is: 75,341.68
Step by Step Solution
- Step 1: Write the proportion equation
99,919.09 : 137,886.68 = 54,596.08 : x - Step 2: Convert to fraction form
99,919.09/137,886.68 = 54,596.08/x - Step 3: Cross multiply
99,919.09x = 137,886.68 × 54,596.08 - Step 4: Simplify right side
99,919.09x = 7,528,071,939.23 - Step 5: Solve for x
x = 7,528,071,939.23/99,919.09 - Step 6: Final answer
x = 75,341.68
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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.