Finding the Fourth Proportional to 115,471.92, 159,349.68 and 64,485.48
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Solution
The fourth proportional to 115,471.92, 159,349.68 and 64,485.48 is: 88,989.09
Step by Step Solution
- Step 1: Write the proportion equation
115,471.92 : 159,349.68 = 64,485.48 : x - Step 2: Convert to fraction form
115,471.92/159,349.68 = 64,485.48/x - Step 3: Cross multiply
115,471.92x = 159,349.68 × 64,485.48 - Step 4: Simplify right side
115,471.92x = 10,275,740,602.65 - Step 5: Solve for x
x = 10,275,740,602.65/115,471.92 - Step 6: Final answer
x = 88,989.09
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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.