Finding the Fourth Proportional to 86,930.44, 130,395.57 and 27,770.65
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Solution
The fourth proportional to 86,930.44, 130,395.57 and 27,770.65 is: 41,655.95
Step by Step Solution
- Step 1: Write the proportion equation
86,930.44 : 130,395.57 = 27,770.65 : x - Step 2: Convert to fraction form
86,930.44/130,395.57 = 27,770.65/x - Step 3: Cross multiply
86,930.44x = 130,395.57 × 27,770.65 - Step 4: Simplify right side
86,930.44x = 3,621,169,736.02 - Step 5: Solve for x
x = 3,621,169,736.02/86,930.44 - Step 6: Final answer
x = 41,655.95
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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.