Finding the Fourth Proportional to 86,220.68, 118,986.84 and 52,221.96
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Solution
The fourth proportional to 86,220.68, 118,986.84 and 52,221.96 is: 72,067.70
Step by Step Solution
- Step 1: Write the proportion equation
86,220.68 : 118,986.84 = 52,221.96 : x - Step 2: Convert to fraction form
86,220.68/118,986.84 = 52,221.96/x - Step 3: Cross multiply
86,220.68x = 118,986.84 × 52,221.96 - Step 4: Simplify right side
86,220.68x = 6,213,725,999.01 - Step 5: Solve for x
x = 6,213,725,999.01/86,220.68 - Step 6: Final answer
x = 72,067.70
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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.