Finding the Fourth Proportional to 96,331.13, 132,936.76 and 53,889.66
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Solution
The fourth proportional to 96,331.13, 132,936.76 and 53,889.66 is: 74,367.62
Step by Step Solution
- Step 1: Write the proportion equation
96,331.13 : 132,936.76 = 53,889.66 : x - Step 2: Convert to fraction form
96,331.13/132,936.76 = 53,889.66/x - Step 3: Cross multiply
96,331.13x = 132,936.76 × 53,889.66 - Step 4: Simplify right side
96,331.13x = 7,163,916,797.90 - Step 5: Solve for x
x = 7,163,916,797.90/96,331.13 - Step 6: Final answer
x = 74,367.62
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1.5x scale
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.