Finding the Fourth Proportional to 67,439.07, 101,154.96 and 20,691.99
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Solution
The fourth proportional to 67,439.07, 101,154.96 and 20,691.99 is: 31,036.87
Step by Step Solution
- Step 1: Write the proportion equation
67,439.07 : 101,154.96 = 20,691.99 : x - Step 2: Convert to fraction form
67,439.07/101,154.96 = 20,691.99/x - Step 3: Cross multiply
67,439.07x = 101,154.96 × 20,691.99 - Step 4: Simplify right side
67,439.07x = 2,093,097,420.77 - Step 5: Solve for x
x = 2,093,097,420.77/67,439.07 - Step 6: Final answer
x = 31,036.87
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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.