Finding the Fourth Proportional to 75,248.15, 112,891.05 and 53,104.77
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Solution
The fourth proportional to 75,248.15, 112,891.05 and 53,104.77 is: 79,670.45
Step by Step Solution
- Step 1: Write the proportion equation
75,248.15 : 112,891.05 = 53,104.77 : x - Step 2: Convert to fraction form
75,248.15/112,891.05 = 53,104.77/x - Step 3: Cross multiply
75,248.15x = 112,891.05 × 53,104.77 - Step 4: Simplify right side
75,248.15x = 5,995,053,245.31 - Step 5: Solve for x
x = 5,995,053,245.31/75,248.15 - Step 6: Final answer
x = 79,670.45
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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.