Finding the Fourth Proportional to 79,811.14, 110,160.60 and 47,134.18
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Solution
The fourth proportional to 79,811.14, 110,160.60 and 47,134.18 is: 65,057.70
Step by Step Solution
- Step 1: Write the proportion equation
79,811.14 : 110,160.60 = 47,134.18 : x - Step 2: Convert to fraction form
79,811.14/110,160.60 = 47,134.18/x - Step 3: Cross multiply
79,811.14x = 110,160.60 × 47,134.18 - Step 4: Simplify right side
79,811.14x = 5,192,329,549.31 - Step 5: Solve for x
x = 5,192,329,549.31/79,811.14 - Step 6: Final answer
x = 65,057.70
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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.