Finding the Fourth Proportional to 86,572.18, 129,881.28 and 27,409.06
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Solution
The fourth proportional to 86,572.18, 129,881.28 and 27,409.06 is: 41,120.88
Step by Step Solution
- Step 1: Write the proportion equation
86,572.18 : 129,881.28 = 27,409.06 : x - Step 2: Convert to fraction form
86,572.18/129,881.28 = 27,409.06/x - Step 3: Cross multiply
86,572.18x = 129,881.28 × 27,409.06 - Step 4: Simplify right side
86,572.18x = 3,559,923,796.40 - Step 5: Solve for x
x = 3,559,923,796.40/86,572.18 - Step 6: Final answer
x = 41,120.88
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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.