Finding the Fourth Proportional to 79,507.60, 119,260.56 and 20,342.80
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Solution
The fourth proportional to 79,507.60, 119,260.56 and 20,342.80 is: 30,513.99
Step by Step Solution
- Step 1: Write the proportion equation
79,507.60 : 119,260.56 = 20,342.80 : x - Step 2: Convert to fraction form
79,507.60/119,260.56 = 20,342.80/x - Step 3: Cross multiply
79,507.60x = 119,260.56 × 20,342.80 - Step 4: Simplify right side
79,507.60x = 2,426,093,719.97 - Step 5: Solve for x
x = 2,426,093,719.97/79,507.60 - Step 6: Final answer
x = 30,513.99
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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.