Finding the Fourth Proportional to 91,130.68, 136,716.08 and 27,959.52
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Solution
The fourth proportional to 91,130.68, 136,716.08 and 27,959.52 is: 41,945.43
Step by Step Solution
- Step 1: Write the proportion equation
91,130.68 : 136,716.08 = 27,959.52 : x - Step 2: Convert to fraction form
91,130.68/136,716.08 = 27,959.52/x - Step 3: Cross multiply
91,130.68x = 136,716.08 × 27,959.52 - Step 4: Simplify right side
91,130.68x = 3,822,515,973.08 - Step 5: Solve for x
x = 3,822,515,973.08/91,130.68 - Step 6: Final answer
x = 41,945.43
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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.