Finding the Fourth Proportional to 90,278.96, 135,418.10 and 27,098.80
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Solution
The fourth proportional to 90,278.96, 135,418.10 and 27,098.80 is: 40,648.09
Step by Step Solution
- Step 1: Write the proportion equation
90,278.96 : 135,418.10 = 27,098.80 : x - Step 2: Convert to fraction form
90,278.96/135,418.10 = 27,098.80/x - Step 3: Cross multiply
90,278.96x = 135,418.10 × 27,098.80 - Step 4: Simplify right side
90,278.96x = 3,669,667,534.24 - Step 5: Solve for x
x = 3,669,667,534.24/90,278.96 - Step 6: Final answer
x = 40,648.09
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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.