Finding the Fourth Proportional to 85,635.96, 118,175.18 and 47,397.08
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Solution
The fourth proportional to 85,635.96, 118,175.18 and 47,397.08 is: 65,406.62
Step by Step Solution
- Step 1: Write the proportion equation
85,635.96 : 118,175.18 = 47,397.08 : x - Step 2: Convert to fraction form
85,635.96/118,175.18 = 47,397.08/x - Step 3: Cross multiply
85,635.96x = 118,175.18 × 47,397.08 - Step 4: Simplify right side
85,635.96x = 5,601,158,460.47 - Step 5: Solve for x
x = 5,601,158,460.47/85,635.96 - Step 6: Final answer
x = 65,406.62
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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.