Finding the Fourth Proportional to 83,687.57, 125,531.28 and 21,358.07
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Solution
The fourth proportional to 83,687.57, 125,531.28 and 21,358.07 is: 32,037.09
Step by Step Solution
- Step 1: Write the proportion equation
83,687.57 : 125,531.28 = 21,358.07 : x - Step 2: Convert to fraction form
83,687.57/125,531.28 = 21,358.07/x - Step 3: Cross multiply
83,687.57x = 125,531.28 × 21,358.07 - Step 4: Simplify right side
83,687.57x = 2,681,105,865.43 - Step 5: Solve for x
x = 2,681,105,865.43/83,687.57 - Step 6: Final answer
x = 32,037.09
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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.