Finding the Fourth Proportional to 84,235.12, 116,241.40 and 45,993.96
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Solution
The fourth proportional to 84,235.12, 116,241.40 and 45,993.96 is: 63,469.99
Step by Step Solution
- Step 1: Write the proportion equation
84,235.12 : 116,241.40 = 45,993.96 : x - Step 2: Convert to fraction form
84,235.12/116,241.40 = 45,993.96/x - Step 3: Cross multiply
84,235.12x = 116,241.40 × 45,993.96 - Step 4: Simplify right side
84,235.12x = 5,346,402,301.94 - Step 5: Solve for x
x = 5,346,402,301.94/84,235.12 - Step 6: Final answer
x = 63,469.99
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.