Finding the Fourth Proportional to 71,858.97, 107,788.46 and 19,267.09
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Solution
The fourth proportional to 71,858.97, 107,788.46 and 19,267.09 is: 28,900.63
Step by Step Solution
- Step 1: Write the proportion equation
71,858.97 : 107,788.46 = 19,267.09 : x - Step 2: Convert to fraction form
71,858.97/107,788.46 = 19,267.09/x - Step 3: Cross multiply
71,858.97x = 107,788.46 × 19,267.09 - Step 4: Simplify right side
71,858.97x = 2,076,769,593.97 - Step 5: Solve for x
x = 2,076,769,593.97/71,858.97 - Step 6: Final answer
x = 28,900.63
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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.