Finding the Fourth Proportional to 99,240.57, 136,952.43 and 53,919.38
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Solution
The fourth proportional to 99,240.57, 136,952.43 and 53,919.38 is: 74,408.99
Step by Step Solution
- Step 1: Write the proportion equation
99,240.57 : 136,952.43 = 53,919.38 : x - Step 2: Convert to fraction form
99,240.57/136,952.43 = 53,919.38/x - Step 3: Cross multiply
99,240.57x = 136,952.43 × 53,919.38 - Step 4: Simplify right side
99,240.57x = 7,384,390,115.09 - Step 5: Solve for x
x = 7,384,390,115.09/99,240.57 - Step 6: Final answer
x = 74,408.99
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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.