Finding the Fourth Proportional to 86,644.44, 129,971.28 and 27,484.82
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Solution
The fourth proportional to 86,644.44, 129,971.28 and 27,484.82 is: 41,228.70
Step by Step Solution
- Step 1: Write the proportion equation
86,644.44 : 129,971.28 = 27,484.82 : x - Step 2: Convert to fraction form
86,644.44/129,971.28 = 27,484.82/x - Step 3: Cross multiply
86,644.44x = 129,971.28 × 27,484.82 - Step 4: Simplify right side
86,644.44x = 3,572,237,235.97 - Step 5: Solve for x
x = 3,572,237,235.97/86,644.44 - Step 6: Final answer
x = 41,228.70
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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.