Finding the Fourth Proportional to 86,269.62, 129,417.50 and 27,099.74
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Solution
The fourth proportional to 86,269.62, 129,417.50 and 27,099.74 is: 40,653.72
Step by Step Solution
- Step 1: Write the proportion equation
86,269.62 : 129,417.50 = 27,099.74 : x - Step 2: Convert to fraction form
86,269.62/129,417.50 = 27,099.74/x - Step 3: Cross multiply
86,269.62x = 129,417.50 × 27,099.74 - Step 4: Simplify right side
86,269.62x = 3,507,180,601.45 - Step 5: Solve for x
x = 3,507,180,601.45/86,269.62 - Step 6: Final answer
x = 40,653.72
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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.