Finding the Fourth Proportional to 81,655.90, 122,495.01 and 29,052.70
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Solution
The fourth proportional to 81,655.90, 122,495.01 and 29,052.70 is: 43,583.02
Step by Step Solution
- Step 1: Write the proportion equation
81,655.90 : 122,495.01 = 29,052.70 : x - Step 2: Convert to fraction form
81,655.90/122,495.01 = 29,052.70/x - Step 3: Cross multiply
81,655.90x = 122,495.01 × 29,052.70 - Step 4: Simplify right side
81,655.90x = 3,558,810,777.03 - Step 5: Solve for x
x = 3,558,810,777.03/81,655.90 - Step 6: Final answer
x = 43,583.02
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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.