Finding the Fourth Proportional to 86,919.15, 130,377.62 and 27,754.07
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Solution
The fourth proportional to 86,919.15, 130,377.62 and 27,754.07 is: 41,630.75
Step by Step Solution
- Step 1: Write the proportion equation
86,919.15 : 130,377.62 = 27,754.07 : x - Step 2: Convert to fraction form
86,919.15/130,377.62 = 27,754.07/x - Step 3: Cross multiply
86,919.15x = 130,377.62 × 27,754.07 - Step 4: Simplify right side
86,919.15x = 3,618,509,591.91 - Step 5: Solve for x
x = 3,618,509,591.91/86,919.15 - Step 6: Final answer
x = 41,630.75
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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.