Finding the Fourth Proportional to 83,858.64, 115,724.88 and 46,132.62
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Solution
The fourth proportional to 83,858.64, 115,724.88 and 46,132.62 is: 63,662.99
Step by Step Solution
- Step 1: Write the proportion equation
83,858.64 : 115,724.88 = 46,132.62 : x - Step 2: Convert to fraction form
83,858.64/115,724.88 = 46,132.62/x - Step 3: Cross multiply
83,858.64x = 115,724.88 × 46,132.62 - Step 4: Simplify right side
83,858.64x = 5,338,691,913.59 - Step 5: Solve for x
x = 5,338,691,913.59/83,858.64 - Step 6: Final answer
x = 63,662.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.