Finding the Fourth Proportional to 99,067.28, 148,609.82 and 27,990.79
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Solution
The fourth proportional to 99,067.28, 148,609.82 and 27,990.79 is: 41,988.70
Step by Step Solution
- Step 1: Write the proportion equation
99,067.28 : 148,609.82 = 27,990.79 : x - Step 2: Convert to fraction form
99,067.28/148,609.82 = 27,990.79/x - Step 3: Cross multiply
99,067.28x = 148,609.82 × 27,990.79 - Step 4: Simplify right side
99,067.28x = 4,159,705,962.01 - Step 5: Solve for x
x = 4,159,705,962.01/99,067.28 - Step 6: Final answer
x = 41,988.70
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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.