Finding the Fourth Proportional to 68,705.92, 102,924.69 and 47,354.82
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Solution
The fourth proportional to 68,705.92, 102,924.69 and 47,354.82 is: 70,939.74
Step by Step Solution
- Step 1: Write the proportion equation
68,705.92 : 102,924.69 = 47,354.82 : x - Step 2: Convert to fraction form
68,705.92/102,924.69 = 47,354.82/x - Step 3: Cross multiply
68,705.92x = 102,924.69 × 47,354.82 - Step 4: Simplify right side
68,705.92x = 4,873,980,168.51 - Step 5: Solve for x
x = 4,873,980,168.51/68,705.92 - Step 6: Final answer
x = 70,939.74
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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.