Finding the Fourth Proportional to 75,893.12, 113,837.36 and 19,731.98
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Solution
The fourth proportional to 75,893.12, 113,837.36 and 19,731.98 is: 29,597.37
Step by Step Solution
- Step 1: Write the proportion equation
75,893.12 : 113,837.36 = 19,731.98 : x - Step 2: Convert to fraction form
75,893.12/113,837.36 = 19,731.98/x - Step 3: Cross multiply
75,893.12x = 113,837.36 × 19,731.98 - Step 4: Simplify right side
75,893.12x = 2,246,236,844.70 - Step 5: Solve for x
x = 2,246,236,844.70/75,893.12 - Step 6: Final answer
x = 29,597.37
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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.