Finding the Fourth Proportional to 83,673.05, 125,509.59 and 21,343.55
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Solution
The fourth proportional to 83,673.05, 125,509.59 and 21,343.55 is: 32,015.32
Step by Step Solution
- Step 1: Write the proportion equation
83,673.05 : 125,509.59 = 21,343.55 : x - Step 2: Convert to fraction form
83,673.05/125,509.59 = 21,343.55/x - Step 3: Cross multiply
83,673.05x = 125,509.59 × 21,343.55 - Step 4: Simplify right side
83,673.05x = 2,678,819,582.10 - Step 5: Solve for x
x = 2,678,819,582.10/83,673.05 - Step 6: Final answer
x = 32,015.32
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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.