Finding the Fourth Proportional to 81,374.55, 122,098.74 and 48,159.42
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Solution
The fourth proportional to 81,374.55, 122,098.74 and 48,159.42 is: 72,260.98
Step by Step Solution
- Step 1: Write the proportion equation
81,374.55 : 122,098.74 = 48,159.42 : x - Step 2: Convert to fraction form
81,374.55/122,098.74 = 48,159.42/x - Step 3: Cross multiply
81,374.55x = 122,098.74 × 48,159.42 - Step 4: Simplify right side
81,374.55x = 5,880,204,501.13 - Step 5: Solve for x
x = 5,880,204,501.13/81,374.55 - Step 6: Final answer
x = 72,260.98
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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.