Finding the Fourth Proportional to 90,723.24, 136,126.17 and 46,327.14
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Solution
The fourth proportional to 90,723.24, 136,126.17 and 46,327.14 is: 69,511.80
Step by Step Solution
- Step 1: Write the proportion equation
90,723.24 : 136,126.17 = 46,327.14 : x - Step 2: Convert to fraction form
90,723.24/136,126.17 = 46,327.14/x - Step 3: Cross multiply
90,723.24x = 136,126.17 × 46,327.14 - Step 4: Simplify right side
90,723.24x = 6,306,336,135.25 - Step 5: Solve for x
x = 6,306,336,135.25/90,723.24 - Step 6: Final answer
x = 69,511.80
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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.