Finding the Fourth Proportional to 81,664.00, 122,527.69 and 31,779.14
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Solution
The fourth proportional to 81,664.00, 122,527.69 and 31,779.14 is: 47,681.03
Step by Step Solution
- Step 1: Write the proportion equation
81,664.00 : 122,527.69 = 31,779.14 : x - Step 2: Convert to fraction form
81,664.00/122,527.69 = 31,779.14/x - Step 3: Cross multiply
81,664.00x = 122,527.69 × 31,779.14 - Step 4: Simplify right side
81,664.00x = 3,893,823,922.30 - Step 5: Solve for x
x = 3,893,823,922.30/81,664.00 - Step 6: Final answer
x = 47,681.03
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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.