Finding the Fourth Proportional to 81,910.17, 122,864.04 and 26,506.17
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Solution
The fourth proportional to 81,910.17, 122,864.04 and 26,506.17 is: 39,758.86
Step by Step Solution
- Step 1: Write the proportion equation
81,910.17 : 122,864.04 = 26,506.17 : x - Step 2: Convert to fraction form
81,910.17/122,864.04 = 26,506.17/x - Step 3: Cross multiply
81,910.17x = 122,864.04 × 26,506.17 - Step 4: Simplify right side
81,910.17x = 3,256,655,131.13 - Step 5: Solve for x
x = 3,256,655,131.13/81,910.17 - Step 6: Final answer
x = 39,758.86
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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.