Finding the Fourth Proportional to 83,533.20, 125,299.80 and 21,203.70
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Solution
The fourth proportional to 83,533.20, 125,299.80 and 21,203.70 is: 31,805.55
Step by Step Solution
- Step 1: Write the proportion equation
83,533.20 : 125,299.80 = 21,203.70 : x - Step 2: Convert to fraction form
83,533.20/125,299.80 = 21,203.70/x - Step 3: Cross multiply
83,533.20x = 125,299.80 × 21,203.70 - Step 4: Simplify right side
83,533.20x = 2,656,819,369.26 - Step 5: Solve for x
x = 2,656,819,369.26/83,533.20 - Step 6: Final answer
x = 31,805.55
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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.