Finding the Fourth Proportional to 76,842.24, 106,043.12 and 43,308.24
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Solution
The fourth proportional to 76,842.24, 106,043.12 and 43,308.24 is: 59,765.84
Step by Step Solution
- Step 1: Write the proportion equation
76,842.24 : 106,043.12 = 43,308.24 : x - Step 2: Convert to fraction form
76,842.24/106,043.12 = 43,308.24/x - Step 3: Cross multiply
76,842.24x = 106,043.12 × 43,308.24 - Step 4: Simplify right side
76,842.24x = 4,592,540,891.31 - Step 5: Solve for x
x = 4,592,540,891.31/76,842.24 - Step 6: Final answer
x = 59,765.84
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1.5x scale
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.