Finding the Fourth Proportional to 81,872.06, 122,808.08 and 22,707.74
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Solution
The fourth proportional to 81,872.06, 122,808.08 and 22,707.74 is: 34,061.60
Step by Step Solution
- Step 1: Write the proportion equation
81,872.06 : 122,808.08 = 22,707.74 : x - Step 2: Convert to fraction form
81,872.06/122,808.08 = 22,707.74/x - Step 3: Cross multiply
81,872.06x = 122,808.08 × 22,707.74 - Step 4: Simplify right side
81,872.06x = 2,788,693,222.96 - Step 5: Solve for x
x = 2,788,693,222.96/81,872.06 - Step 6: Final answer
x = 34,061.60
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1.5x scale
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.