Finding the Fourth Proportional to 86,212.24, 118,972.94 and 48,486.52
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Solution
The fourth proportional to 86,212.24, 118,972.94 and 48,486.52 is: 66,911.43
Step by Step Solution
- Step 1: Write the proportion equation
86,212.24 : 118,972.94 = 48,486.52 : x - Step 2: Convert to fraction form
86,212.24/118,972.94 = 48,486.52/x - Step 3: Cross multiply
86,212.24x = 118,972.94 × 48,486.52 - Step 4: Simplify right side
86,212.24x = 5,768,583,834.77 - Step 5: Solve for x
x = 5,768,583,834.77/86,212.24 - Step 6: Final answer
x = 66,911.43
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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.