Finding the Fourth Proportional to 90,259.36, 135,241.08 and 63,916.82
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Solution
The fourth proportional to 90,259.36, 135,241.08 and 63,916.82 is: 95,770.45
Step by Step Solution
- Step 1: Write the proportion equation
90,259.36 : 135,241.08 = 63,916.82 : x - Step 2: Convert to fraction form
90,259.36/135,241.08 = 63,916.82/x - Step 3: Cross multiply
90,259.36x = 135,241.08 × 63,916.82 - Step 4: Simplify right side
90,259.36x = 8,644,179,766.97 - Step 5: Solve for x
x = 8,644,179,766.97/90,259.36 - Step 6: Final answer
x = 95,770.45
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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.