Finding the Fourth Proportional to 75,675.80, 104,416.68 and 43,842.80
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Solution
The fourth proportional to 75,675.80, 104,416.68 and 43,842.80 is: 60,493.84
Step by Step Solution
- Step 1: Write the proportion equation
75,675.80 : 104,416.68 = 43,842.80 : x - Step 2: Convert to fraction form
75,675.80/104,416.68 = 43,842.80/x - Step 3: Cross multiply
75,675.80x = 104,416.68 × 43,842.80 - Step 4: Simplify right side
75,675.80x = 4,577,919,617.90 - Step 5: Solve for x
x = 4,577,919,617.90/75,675.80 - Step 6: Final answer
x = 60,493.84
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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.