Finding the Fourth Proportional to 92,434.58, 138,651.87 and 30,105.08
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Solution
The fourth proportional to 92,434.58, 138,651.87 and 30,105.08 is: 45,157.62
Step by Step Solution
- Step 1: Write the proportion equation
92,434.58 : 138,651.87 = 30,105.08 : x - Step 2: Convert to fraction form
92,434.58/138,651.87 = 30,105.08/x - Step 3: Cross multiply
92,434.58x = 138,651.87 × 30,105.08 - Step 4: Simplify right side
92,434.58x = 4,174,125,578.08 - Step 5: Solve for x
x = 4,174,125,578.08/92,434.58 - Step 6: Final answer
x = 45,157.62
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1.5x scale
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.