Finding the Fourth Proportional to 83,452.32, 115,135.44 and 47,616.48
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Solution
The fourth proportional to 83,452.32, 115,135.44 and 47,616.48 is: 65,694.33
Step by Step Solution
- Step 1: Write the proportion equation
83,452.32 : 115,135.44 = 47,616.48 : x - Step 2: Convert to fraction form
83,452.32/115,135.44 = 47,616.48/x - Step 3: Cross multiply
83,452.32x = 115,135.44 × 47,616.48 - Step 4: Simplify right side
83,452.32x = 5,482,344,376.05 - Step 5: Solve for x
x = 5,482,344,376.05/83,452.32 - Step 6: Final answer
x = 65,694.33
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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.