Finding the Fourth Proportional to 86,185.11, 129,165.36 and 44,029.66
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Solution
The fourth proportional to 86,185.11, 129,165.36 and 44,029.66 is: 65,987.12
Step by Step Solution
- Step 1: Write the proportion equation
86,185.11 : 129,165.36 = 44,029.66 : x - Step 2: Convert to fraction form
86,185.11/129,165.36 = 44,029.66/x - Step 3: Cross multiply
86,185.11x = 129,165.36 × 44,029.66 - Step 4: Simplify right side
86,185.11x = 5,687,107,307.49 - Step 5: Solve for x
x = 5,687,107,307.49/86,185.11 - Step 6: Final answer
x = 65,987.12
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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.