Finding the Fourth Proportional to 75,768.40, 113,641.98 and 40,214.08
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Solution
The fourth proportional to 75,768.40, 113,641.98 and 40,214.08 is: 60,315.48
Step by Step Solution
- Step 1: Write the proportion equation
75,768.40 : 113,641.98 = 40,214.08 : x - Step 2: Convert to fraction form
75,768.40/113,641.98 = 40,214.08/x - Step 3: Cross multiply
75,768.40x = 113,641.98 × 40,214.08 - Step 4: Simplify right side
75,768.40x = 4,570,007,675.08 - Step 5: Solve for x
x = 4,570,007,675.08/75,768.40 - Step 6: Final answer
x = 60,315.48
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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.