Finding the Fourth Proportional to 86,555.81, 129,853.17 and 27,395.03
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Solution
The fourth proportional to 86,555.81, 129,853.17 and 27,395.03 is: 41,098.70
Step by Step Solution
- Step 1: Write the proportion equation
86,555.81 : 129,853.17 = 27,395.03 : x - Step 2: Convert to fraction form
86,555.81/129,853.17 = 27,395.03/x - Step 3: Cross multiply
86,555.81x = 129,853.17 × 27,395.03 - Step 4: Simplify right side
86,555.81x = 3,557,331,487.75 - Step 5: Solve for x
x = 3,557,331,487.75/86,555.81 - Step 6: Final answer
x = 41,098.70
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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.