Finding the Fourth Proportional to 71,838.09, 107,750.35 and 33,878.55
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Solution
The fourth proportional to 71,838.09, 107,750.35 and 33,878.55 is: 50,814.63
Step by Step Solution
- Step 1: Write the proportion equation
71,838.09 : 107,750.35 = 33,878.55 : x - Step 2: Convert to fraction form
71,838.09/107,750.35 = 33,878.55/x - Step 3: Cross multiply
71,838.09x = 107,750.35 × 33,878.55 - Step 4: Simplify right side
71,838.09x = 3,650,426,066.40 - Step 5: Solve for x
x = 3,650,426,066.40/71,838.09 - Step 6: Final answer
x = 50,814.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.