Finding the Fourth Proportional to 75,639.68, 113,460.08 and 28,265.48
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Solution
The fourth proportional to 75,639.68, 113,460.08 and 28,265.48 is: 42,398.42
Step by Step Solution
- Step 1: Write the proportion equation
75,639.68 : 113,460.08 = 28,265.48 : x - Step 2: Convert to fraction form
75,639.68/113,460.08 = 28,265.48/x - Step 3: Cross multiply
75,639.68x = 113,460.08 × 28,265.48 - Step 4: Simplify right side
75,639.68x = 3,207,002,913.41 - Step 5: Solve for x
x = 3,207,002,913.41/75,639.68 - Step 6: Final answer
x = 42,398.42
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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.