Finding the Fourth Proportional to 73,513.08, 101,447.40 and 39,979.08
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Solution
The fourth proportional to 73,513.08, 101,447.40 and 39,979.08 is: 55,170.78
Step by Step Solution
- Step 1: Write the proportion equation
73,513.08 : 101,447.40 = 39,979.08 : x - Step 2: Convert to fraction form
73,513.08/101,447.40 = 39,979.08/x - Step 3: Cross multiply
73,513.08x = 101,447.40 × 39,979.08 - Step 4: Simplify right side
73,513.08x = 4,055,773,720.39 - Step 5: Solve for x
x = 4,055,773,720.39/73,513.08 - Step 6: Final answer
x = 55,170.78
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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.