Finding the Fourth Proportional to 83,497.25, 125,253.21 and 21,167.75
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Solution
The fourth proportional to 83,497.25, 125,253.21 and 21,167.75 is: 31,753.48
Step by Step Solution
- Step 1: Write the proportion equation
83,497.25 : 125,253.21 = 21,167.75 : x - Step 2: Convert to fraction form
83,497.25/125,253.21 = 21,167.75/x - Step 3: Cross multiply
83,497.25x = 125,253.21 × 21,167.75 - Step 4: Simplify right side
83,497.25x = 2,651,328,635.98 - Step 5: Solve for x
x = 2,651,328,635.98/83,497.25 - Step 6: Final answer
x = 31,753.48
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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.