Finding the Fourth Proportional to 83,438.24, 125,156.21 and 20,258.84
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Solution
The fourth proportional to 83,438.24, 125,156.21 and 20,258.84 is: 30,387.99
Step by Step Solution
- Step 1: Write the proportion equation
83,438.24 : 125,156.21 = 20,258.84 : x - Step 2: Convert to fraction form
83,438.24/125,156.21 = 20,258.84/x - Step 3: Cross multiply
83,438.24x = 125,156.21 × 20,258.84 - Step 4: Simplify right side
83,438.24x = 2,535,519,844.99 - Step 5: Solve for x
x = 2,535,519,844.99/83,438.24 - Step 6: Final answer
x = 30,387.99
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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.