Finding the Fourth Proportional to 86,342.88, 129,513.84 and 27,182.88
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Solution
The fourth proportional to 86,342.88, 129,513.84 and 27,182.88 is: 40,774.17
Step by Step Solution
- Step 1: Write the proportion equation
86,342.88 : 129,513.84 = 27,182.88 : x - Step 2: Convert to fraction form
86,342.88/129,513.84 = 27,182.88/x - Step 3: Cross multiply
86,342.88x = 129,513.84 × 27,182.88 - Step 4: Simplify right side
86,342.88x = 3,520,559,171.06 - Step 5: Solve for x
x = 3,520,559,171.06/86,342.88 - Step 6: Final answer
x = 40,774.17
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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.