Finding the Fourth Proportional to 68,745.96, 103,117.38 and 21,998.68
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Solution
The fourth proportional to 68,745.96, 103,117.38 and 21,998.68 is: 32,997.52
Step by Step Solution
- Step 1: Write the proportion equation
68,745.96 : 103,117.38 = 21,998.68 : x - Step 2: Convert to fraction form
68,745.96/103,117.38 = 21,998.68/x - Step 3: Cross multiply
68,745.96x = 103,117.38 × 21,998.68 - Step 4: Simplify right side
68,745.96x = 2,268,446,245.06 - Step 5: Solve for x
x = 2,268,446,245.06/68,745.96 - Step 6: Final answer
x = 32,997.52
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Double scale
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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.