Finding the Fourth Proportional to 67,103.26, 100,655.34 and 19,718.17
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Solution
The fourth proportional to 67,103.26, 100,655.34 and 19,718.17 is: 29,577.39
Step by Step Solution
- Step 1: Write the proportion equation
67,103.26 : 100,655.34 = 19,718.17 : x - Step 2: Convert to fraction form
67,103.26/100,655.34 = 19,718.17/x - Step 3: Cross multiply
67,103.26x = 100,655.34 × 19,718.17 - Step 4: Simplify right side
67,103.26x = 1,984,739,105.53 - Step 5: Solve for x
x = 1,984,739,105.53/67,103.26 - Step 6: Final answer
x = 29,577.39
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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.