Finding the Fourth Proportional to 75,998.91, 113,998.44 and 19,838.88
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Solution
The fourth proportional to 75,998.91, 113,998.44 and 19,838.88 is: 29,758.34
Step by Step Solution
- Step 1: Write the proportion equation
75,998.91 : 113,998.44 = 19,838.88 : x - Step 2: Convert to fraction form
75,998.91/113,998.44 = 19,838.88/x - Step 3: Cross multiply
75,998.91x = 113,998.44 × 19,838.88 - Step 4: Simplify right side
75,998.91x = 2,261,601,371.35 - Step 5: Solve for x
x = 2,261,601,371.35/75,998.91 - Step 6: Final answer
x = 29,758.34
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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.