Finding the Fourth Proportional to 75,528.40, 113,292.20 and 19,368.40
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Solution
The fourth proportional to 75,528.40, 113,292.20 and 19,368.40 is: 29,052.50
Step by Step Solution
- Step 1: Write the proportion equation
75,528.40 : 113,292.20 = 19,368.40 : x - Step 2: Convert to fraction form
75,528.40/113,292.20 = 19,368.40/x - Step 3: Cross multiply
75,528.40x = 113,292.20 × 19,368.40 - Step 4: Simplify right side
75,528.40x = 2,194,288,646.48 - Step 5: Solve for x
x = 2,194,288,646.48/75,528.40 - Step 6: Final answer
x = 29,052.50
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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.