Finding the Fourth Proportional to 76,848.92, 115,279.32 and 29,486.68
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Solution
The fourth proportional to 76,848.92, 115,279.32 and 29,486.68 is: 44,232.30
Step by Step Solution
- Step 1: Write the proportion equation
76,848.92 : 115,279.32 = 29,486.68 : x - Step 2: Convert to fraction form
76,848.92/115,279.32 = 29,486.68/x - Step 3: Cross multiply
76,848.92x = 115,279.32 × 29,486.68 - Step 4: Simplify right side
76,848.92x = 3,399,204,419.46 - Step 5: Solve for x
x = 3,399,204,419.46/76,848.92 - Step 6: Final answer
x = 44,232.30
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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.