Finding the Fourth Proportional to 86,288.09, 129,452.88 and 27,123.71
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Solution
The fourth proportional to 86,288.09, 129,452.88 and 27,123.71 is: 40,692.09
Step by Step Solution
- Step 1: Write the proportion equation
86,288.09 : 129,452.88 = 27,123.71 : x - Step 2: Convert to fraction form
86,288.09/129,452.88 = 27,123.71/x - Step 3: Cross multiply
86,288.09x = 129,452.88 × 27,123.71 - Step 4: Simplify right side
86,288.09x = 3,511,242,558.41 - Step 5: Solve for x
x = 3,511,242,558.41/86,288.09 - Step 6: Final answer
x = 40,692.09
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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.