Finding the Fourth Proportional to 81,817.29, 122,652.06 and 56,869.08
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Solution
The fourth proportional to 81,817.29, 122,652.06 and 56,869.08 is: 85,252.27
Step by Step Solution
- Step 1: Write the proportion equation
81,817.29 : 122,652.06 = 56,869.08 : x - Step 2: Convert to fraction form
81,817.29/122,652.06 = 56,869.08/x - Step 3: Cross multiply
81,817.29x = 122,652.06 × 56,869.08 - Step 4: Simplify right side
81,817.29x = 6,975,109,812.30 - Step 5: Solve for x
x = 6,975,109,812.30/81,817.29 - Step 6: Final answer
x = 85,252.27
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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.