Finding the Fourth Proportional to 86,564.67, 129,863.84 and 33,252.75
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Solution
The fourth proportional to 86,564.67, 129,863.84 and 33,252.75 is: 49,885.59
Step by Step Solution
- Step 1: Write the proportion equation
86,564.67 : 129,863.84 = 33,252.75 : x - Step 2: Convert to fraction form
86,564.67/129,863.84 = 33,252.75/x - Step 3: Cross multiply
86,564.67x = 129,863.84 × 33,252.75 - Step 4: Simplify right side
86,564.67x = 4,318,329,639.30 - Step 5: Solve for x
x = 4,318,329,639.30/86,564.67 - Step 6: Final answer
x = 49,885.59
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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.