Finding the Fourth Proportional to 81,093.74, 121,647.12 and 28,515.02
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Solution
The fourth proportional to 81,093.74, 121,647.12 and 28,515.02 is: 42,774.82
Step by Step Solution
- Step 1: Write the proportion equation
81,093.74 : 121,647.12 = 28,515.02 : x - Step 2: Convert to fraction form
81,093.74/121,647.12 = 28,515.02/x - Step 3: Cross multiply
81,093.74x = 121,647.12 × 28,515.02 - Step 4: Simplify right side
81,093.74x = 3,468,770,059.74 - Step 5: Solve for x
x = 3,468,770,059.74/81,093.74 - Step 6: Final answer
x = 42,774.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.