Finding the Fourth Proportional to 83,672.24, 115,439.28 and 47,836.88
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Solution
The fourth proportional to 83,672.24, 115,439.28 and 47,836.88 is: 65,998.65
Step by Step Solution
- Step 1: Write the proportion equation
83,672.24 : 115,439.28 = 47,836.88 : x - Step 2: Convert to fraction form
83,672.24/115,439.28 = 47,836.88/x - Step 3: Cross multiply
83,672.24x = 115,439.28 × 47,836.88 - Step 4: Simplify right side
83,672.24x = 5,522,254,984.65 - Step 5: Solve for x
x = 5,522,254,984.65/83,672.24 - Step 6: Final answer
x = 65,998.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.