Finding the Fourth Proportional to 85,857.63, 118,495.63 and 47,625.68
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Solution
The fourth proportional to 85,857.63, 118,495.63 and 47,625.68 is: 65,730.14
Step by Step Solution
- Step 1: Write the proportion equation
85,857.63 : 118,495.63 = 47,625.68 : x - Step 2: Convert to fraction form
85,857.63/118,495.63 = 47,625.68/x - Step 3: Cross multiply
85,857.63x = 118,495.63 × 47,625.68 - Step 4: Simplify right side
85,857.63x = 5,643,434,244.24 - Step 5: Solve for x
x = 5,643,434,244.24/85,857.63 - Step 6: Final answer
x = 65,730.14
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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.