Finding the Fourth Proportional to 129,454.79, 194,091.93 and 57,368.44
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Solution
The fourth proportional to 129,454.79, 194,091.93 and 57,368.44 is: 86,012.67
Step by Step Solution
- Step 1: Write the proportion equation
129,454.79 : 194,091.93 = 57,368.44 : x - Step 2: Convert to fraction form
129,454.79/194,091.93 = 57,368.44/x - Step 3: Cross multiply
129,454.79x = 194,091.93 × 57,368.44 - Step 4: Simplify right side
129,454.79x = 11,134,751,483.30 - Step 5: Solve for x
x = 11,134,751,483.30/129,454.79 - Step 6: Final answer
x = 86,012.67
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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.