Finding the Fourth Proportional to 85,626.96, 118,162.28 and 47,388.12
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Solution
The fourth proportional to 85,626.96, 118,162.28 and 47,388.12 is: 65,393.99
Step by Step Solution
- Step 1: Write the proportion equation
85,626.96 : 118,162.28 = 47,388.12 : x - Step 2: Convert to fraction form
85,626.96/118,162.28 = 47,388.12/x - Step 3: Cross multiply
85,626.96x = 118,162.28 × 47,388.12 - Step 4: Simplify right side
85,626.96x = 5,599,488,304.11 - Step 5: Solve for x
x = 5,599,488,304.11/85,626.96 - Step 6: Final answer
x = 65,393.99
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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.