Finding the Fourth Proportional to 115,639.84, 173,459.76 and 36,754.08
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Solution
The fourth proportional to 115,639.84, 173,459.76 and 36,754.08 is: 55,131.12
Step by Step Solution
- Step 1: Write the proportion equation
115,639.84 : 173,459.76 = 36,754.08 : x - Step 2: Convert to fraction form
115,639.84/173,459.76 = 36,754.08/x - Step 3: Cross multiply
115,639.84x = 173,459.76 × 36,754.08 - Step 4: Simplify right side
115,639.84x = 6,375,353,895.82 - Step 5: Solve for x
x = 6,375,353,895.82/115,639.84 - Step 6: Final answer
x = 55,131.12
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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.