Finding the Fourth Proportional to 83,877.25, 125,815.88 and 21,547.75
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Solution
The fourth proportional to 83,877.25, 125,815.88 and 21,547.75 is: 32,321.63
Step by Step Solution
- Step 1: Write the proportion equation
83,877.25 : 125,815.88 = 21,547.75 : x - Step 2: Convert to fraction form
83,877.25/125,815.88 = 21,547.75/x - Step 3: Cross multiply
83,877.25x = 125,815.88 × 21,547.75 - Step 4: Simplify right side
83,877.25x = 2,711,049,128.27 - Step 5: Solve for x
x = 2,711,049,128.27/83,877.25 - Step 6: Final answer
x = 32,321.63
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1.5x scale
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.