Finding the Fourth Proportional to 81,904.29, 122,856.43 and 22,740.02
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Solution
The fourth proportional to 81,904.29, 122,856.43 and 22,740.02 is: 34,110.02
Step by Step Solution
- Step 1: Write the proportion equation
81,904.29 : 122,856.43 = 22,740.02 : x - Step 2: Convert to fraction form
81,904.29/122,856.43 = 22,740.02/x - Step 3: Cross multiply
81,904.29x = 122,856.43 × 22,740.02 - Step 4: Simplify right side
81,904.29x = 2,793,757,257.95 - Step 5: Solve for x
x = 2,793,757,257.95/81,904.29 - Step 6: Final answer
x = 34,110.02
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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.