Finding the Fourth Proportional to 75,641.94, 113,463.46 and 28,267.74
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Solution
The fourth proportional to 75,641.94, 113,463.46 and 28,267.74 is: 42,401.82
Step by Step Solution
- Step 1: Write the proportion equation
75,641.94 : 113,463.46 = 28,267.74 : x - Step 2: Convert to fraction form
75,641.94/113,463.46 = 28,267.74/x - Step 3: Cross multiply
75,641.94x = 113,463.46 × 28,267.74 - Step 4: Simplify right side
75,641.94x = 3,207,355,586.78 - Step 5: Solve for x
x = 3,207,355,586.78/75,641.94 - Step 6: Final answer
x = 42,401.82
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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.