Finding the Fourth Proportional to 83,683.20, 125,524.80 and 21,353.70
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Solution
The fourth proportional to 83,683.20, 125,524.80 and 21,353.70 is: 32,030.55
Step by Step Solution
- Step 1: Write the proportion equation
83,683.20 : 125,524.80 = 21,353.70 : x - Step 2: Convert to fraction form
83,683.20/125,524.80 = 21,353.70/x - Step 3: Cross multiply
83,683.20x = 125,524.80 × 21,353.70 - Step 4: Simplify right side
83,683.20x = 2,680,418,921.76 - Step 5: Solve for x
x = 2,680,418,921.76/83,683.20 - Step 6: Final answer
x = 32,030.55
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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.