Finding the Fourth Proportional to 86,885.51, 119,874.11 and 48,639.42
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Solution
The fourth proportional to 86,885.51, 119,874.11 and 48,639.42 is: 67,106.79
Step by Step Solution
- Step 1: Write the proportion equation
86,885.51 : 119,874.11 = 48,639.42 : x - Step 2: Convert to fraction form
86,885.51/119,874.11 = 48,639.42/x - Step 3: Cross multiply
86,885.51x = 119,874.11 × 48,639.42 - Step 4: Simplify right side
86,885.51x = 5,830,606,940.22 - Step 5: Solve for x
x = 5,830,606,940.22/86,885.51 - Step 6: Final answer
x = 67,106.79
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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.