Finding the Fourth Proportional to 83,832.49, 115,688.26 and 47,540.79
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Solution
The fourth proportional to 83,832.49, 115,688.26 and 47,540.79 is: 65,605.96
Step by Step Solution
- Step 1: Write the proportion equation
83,832.49 : 115,688.26 = 47,540.79 : x - Step 2: Convert to fraction form
83,832.49/115,688.26 = 47,540.79/x - Step 3: Cross multiply
83,832.49x = 115,688.26 × 47,540.79 - Step 4: Simplify right side
83,832.49x = 5,499,911,274.13 - Step 5: Solve for x
x = 5,499,911,274.13/83,832.49 - Step 6: Final answer
x = 65,605.96
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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.