Finding the Fourth Proportional to 115,322.08, 172,990.42 and 48,749.80
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Solution
The fourth proportional to 115,322.08, 172,990.42 and 48,749.80 is: 73,127.79
Step by Step Solution
- Step 1: Write the proportion equation
115,322.08 : 172,990.42 = 48,749.80 : x - Step 2: Convert to fraction form
115,322.08/172,990.42 = 48,749.80/x - Step 3: Cross multiply
115,322.08x = 172,990.42 × 48,749.80 - Step 4: Simplify right side
115,322.08x = 8,433,248,376.92 - Step 5: Solve for x
x = 8,433,248,376.92/115,322.08 - Step 6: Final answer
x = 73,127.79
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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.