Finding the Fourth Proportional to 73,527.60, 101,465.16 and 39,993.68
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Solution
The fourth proportional to 73,527.60, 101,465.16 and 39,993.68 is: 55,189.69
Step by Step Solution
- Step 1: Write the proportion equation
73,527.60 : 101,465.16 = 39,993.68 : x - Step 2: Convert to fraction form
73,527.60/101,465.16 = 39,993.68/x - Step 3: Cross multiply
73,527.60x = 101,465.16 × 39,993.68 - Step 4: Simplify right side
73,527.60x = 4,057,965,140.19 - Step 5: Solve for x
x = 4,057,965,140.19/73,527.60 - Step 6: Final answer
x = 55,189.69
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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.