Finding the Fourth Proportional to 76,933.84, 115,449.36 and 30,185.68
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Solution
The fourth proportional to 76,933.84, 115,449.36 and 30,185.68 is: 45,297.59
Step by Step Solution
- Step 1: Write the proportion equation
76,933.84 : 115,449.36 = 30,185.68 : x - Step 2: Convert to fraction form
76,933.84/115,449.36 = 30,185.68/x - Step 3: Cross multiply
76,933.84x = 115,449.36 × 30,185.68 - Step 4: Simplify right side
76,933.84x = 3,484,917,437.16 - Step 5: Solve for x
x = 3,484,917,437.16/76,933.84 - Step 6: Final answer
x = 45,297.59
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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.