Finding the Fourth Proportional to 75,672.14, 113,514.74 and 19,511.76
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Solution
The fourth proportional to 75,672.14, 113,514.74 and 19,511.76 is: 29,269.32
Step by Step Solution
- Step 1: Write the proportion equation
75,672.14 : 113,514.74 = 19,511.76 : x - Step 2: Convert to fraction form
75,672.14/113,514.74 = 19,511.76/x - Step 3: Cross multiply
75,672.14x = 113,514.74 × 19,511.76 - Step 4: Simplify right side
75,672.14x = 2,214,872,363.34 - Step 5: Solve for x
x = 2,214,872,363.34/75,672.14 - Step 6: Final answer
x = 29,269.32
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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.