Finding the Fourth Proportional to 86,807.63, 130,220.99 and 27,629.44
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Solution
The fourth proportional to 86,807.63, 130,220.99 and 27,629.44 is: 41,447.20
Step by Step Solution
- Step 1: Write the proportion equation
86,807.63 : 130,220.99 = 27,629.44 : x - Step 2: Convert to fraction form
86,807.63/130,220.99 = 27,629.44/x - Step 3: Cross multiply
86,807.63x = 130,220.99 × 27,629.44 - Step 4: Simplify right side
86,807.63x = 3,597,933,029.95 - Step 5: Solve for x
x = 3,597,933,029.95/86,807.63 - Step 6: Final answer
x = 41,447.20
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1.5x scale
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.