Finding the Fourth Proportional to 94,140.75, 129,925.76 and 54,396.75
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Solution
The fourth proportional to 94,140.75, 129,925.76 and 54,396.75 is: 75,074.17
Step by Step Solution
- Step 1: Write the proportion equation
94,140.75 : 129,925.76 = 54,396.75 : x - Step 2: Convert to fraction form
94,140.75/129,925.76 = 54,396.75/x - Step 3: Cross multiply
94,140.75x = 129,925.76 × 54,396.75 - Step 4: Simplify right side
94,140.75x = 7,067,538,813.30 - Step 5: Solve for x
x = 7,067,538,813.30/94,140.75 - Step 6: Final answer
x = 75,074.17
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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.