Finding the Fourth Proportional to 83,739.08, 115,566.36 and 47,940.32
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Solution
The fourth proportional to 83,739.08, 115,566.36 and 47,940.32 is: 66,161.32
Step by Step Solution
- Step 1: Write the proportion equation
83,739.08 : 115,566.36 = 47,940.32 : x - Step 2: Convert to fraction form
83,739.08/115,566.36 = 47,940.32/x - Step 3: Cross multiply
83,739.08x = 115,566.36 × 47,940.32 - Step 4: Simplify right side
83,739.08x = 5,540,288,279.64 - Step 5: Solve for x
x = 5,540,288,279.64/83,739.08 - Step 6: Final answer
x = 66,161.32
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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.