Finding the Fourth Proportional to 74,200.98, 111,116.84 and 51,909.99
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Solution
The fourth proportional to 74,200.98, 111,116.84 and 51,909.99 is: 77,735.81
Step by Step Solution
- Step 1: Write the proportion equation
74,200.98 : 111,116.84 = 51,909.99 : x - Step 2: Convert to fraction form
74,200.98/111,116.84 = 51,909.99/x - Step 3: Cross multiply
74,200.98x = 111,116.84 × 51,909.99 - Step 4: Simplify right side
74,200.98x = 5,768,073,627.42 - Step 5: Solve for x
x = 5,768,073,627.42/74,200.98 - Step 6: Final answer
x = 77,735.81
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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.