Finding the Fourth Proportional to 83,869.62, 125,800.35 and 31,275.01
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Solution
The fourth proportional to 83,869.62, 125,800.35 and 31,275.01 is: 46,910.99
Step by Step Solution
- Step 1: Write the proportion equation
83,869.62 : 125,800.35 = 31,275.01 : x - Step 2: Convert to fraction form
83,869.62/125,800.35 = 31,275.01/x - Step 3: Cross multiply
83,869.62x = 125,800.35 × 31,275.01 - Step 4: Simplify right side
83,869.62x = 3,934,407,204.25 - Step 5: Solve for x
x = 3,934,407,204.25/83,869.62 - Step 6: Final answer
x = 46,910.99
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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.