Finding the Fourth Proportional to 86,516.40, 129,750.30 and 27,370.20
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Solution
The fourth proportional to 86,516.40, 129,750.30 and 27,370.20 is: 41,047.61
Step by Step Solution
- Step 1: Write the proportion equation
86,516.40 : 129,750.30 = 27,370.20 : x - Step 2: Convert to fraction form
86,516.40/129,750.30 = 27,370.20/x - Step 3: Cross multiply
86,516.40x = 129,750.30 × 27,370.20 - Step 4: Simplify right side
86,516.40x = 3,551,291,661.06 - Step 5: Solve for x
x = 3,551,291,661.06/86,516.40 - Step 6: Final answer
x = 41,047.61
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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.