Finding the Fourth Proportional to 76,764.98, 115,147.58 and 39,304.62
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Solution
The fourth proportional to 76,764.98, 115,147.58 and 39,304.62 is: 58,956.99
Step by Step Solution
- Step 1: Write the proportion equation
76,764.98 : 115,147.58 = 39,304.62 : x - Step 2: Convert to fraction form
76,764.98/115,147.58 = 39,304.62/x - Step 3: Cross multiply
76,764.98x = 115,147.58 × 39,304.62 - Step 4: Simplify right side
76,764.98x = 4,525,831,679.30 - Step 5: Solve for x
x = 4,525,831,679.30/76,764.98 - Step 6: Final answer
x = 58,956.99
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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.