Finding the Fourth Proportional to 86,511.60, 129,822.06 and 33,919.68
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Solution
The fourth proportional to 86,511.60, 129,822.06 and 33,919.68 is: 50,900.95
Step by Step Solution
- Step 1: Write the proportion equation
86,511.60 : 129,822.06 = 33,919.68 : x - Step 2: Convert to fraction form
86,511.60/129,822.06 = 33,919.68/x - Step 3: Cross multiply
86,511.60x = 129,822.06 × 33,919.68 - Step 4: Simplify right side
86,511.60x = 4,403,522,732.14 - Step 5: Solve for x
x = 4,403,522,732.14/86,511.60 - Step 6: Final answer
x = 50,900.95
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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.