Finding the Fourth Proportional to 81,710.92, 122,536.14 and 29,106.44
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Solution
The fourth proportional to 81,710.92, 122,536.14 and 29,106.44 is: 43,648.89
Step by Step Solution
- Step 1: Write the proportion equation
81,710.92 : 122,536.14 = 29,106.44 : x - Step 2: Convert to fraction form
81,710.92/122,536.14 = 29,106.44/x - Step 3: Cross multiply
81,710.92x = 122,536.14 × 29,106.44 - Step 4: Simplify right side
81,710.92x = 3,566,590,806.74 - Step 5: Solve for x
x = 3,566,590,806.74/81,710.92 - Step 6: Final answer
x = 43,648.89
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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.