Finding the Fourth Proportional to 75,368.28, 113,052.30 and 28,621.08
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Solution
The fourth proportional to 75,368.28, 113,052.30 and 28,621.08 is: 42,931.57
Step by Step Solution
- Step 1: Write the proportion equation
75,368.28 : 113,052.30 = 28,621.08 : x - Step 2: Convert to fraction form
75,368.28/113,052.30 = 28,621.08/x - Step 3: Cross multiply
75,368.28x = 113,052.30 × 28,621.08 - Step 4: Simplify right side
75,368.28x = 3,235,678,922.48 - Step 5: Solve for x
x = 3,235,678,922.48/75,368.28 - Step 6: Final answer
x = 42,931.57
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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.