Finding the Fourth Proportional to 86,212.92, 118,972.68 and 48,487.17
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Solution
The fourth proportional to 86,212.92, 118,972.68 and 48,487.17 is: 66,911.65
Step by Step Solution
- Step 1: Write the proportion equation
86,212.92 : 118,972.68 = 48,487.17 : x - Step 2: Convert to fraction form
86,212.92/118,972.68 = 48,487.17/x - Step 3: Cross multiply
86,212.92x = 118,972.68 × 48,487.17 - Step 4: Simplify right side
86,212.92x = 5,768,648,560.52 - Step 5: Solve for x
x = 5,768,648,560.52/86,212.92 - Step 6: Final answer
x = 66,911.65
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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.