Finding the Fourth Proportional to 115,276.78, 172,933.05 and 48,717.19
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Solution
The fourth proportional to 115,276.78, 172,933.05 and 48,717.19 is: 73,083.34
Step by Step Solution
- Step 1: Write the proportion equation
115,276.78 : 172,933.05 = 48,717.19 : x - Step 2: Convert to fraction form
115,276.78/172,933.05 = 48,717.19/x - Step 3: Cross multiply
115,276.78x = 172,933.05 × 48,717.19 - Step 4: Simplify right side
115,276.78x = 8,424,812,254.13 - Step 5: Solve for x
x = 8,424,812,254.13/115,276.78 - Step 6: Final answer
x = 73,083.34
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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.