Finding the Fourth Proportional to 85,114.13, 117,461.14 and 47,388.38
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Solution
The fourth proportional to 85,114.13, 117,461.14 and 47,388.38 is: 65,397.99
Step by Step Solution
- Step 1: Write the proportion equation
85,114.13 : 117,461.14 = 47,388.38 : x - Step 2: Convert to fraction form
85,114.13/117,461.14 = 47,388.38/x - Step 3: Cross multiply
85,114.13x = 117,461.14 × 47,388.38 - Step 4: Simplify right side
85,114.13x = 5,566,292,431.78 - Step 5: Solve for x
x = 5,566,292,431.78/85,114.13 - Step 6: Final answer
x = 65,397.99
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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.