Finding the Fourth Proportional to 79,515.60, 119,272.56 and 20,350.80
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Solution
The fourth proportional to 79,515.60, 119,272.56 and 20,350.80 is: 30,525.99
Step by Step Solution
- Step 1: Write the proportion equation
79,515.60 : 119,272.56 = 20,350.80 : x - Step 2: Convert to fraction form
79,515.60/119,272.56 = 20,350.80/x - Step 3: Cross multiply
79,515.60x = 119,272.56 × 20,350.80 - Step 4: Simplify right side
79,515.60x = 2,427,292,014.05 - Step 5: Solve for x
x = 2,427,292,014.05/79,515.60 - Step 6: Final answer
x = 30,525.99
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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.