Finding the Fourth Proportional to 76,187.91, 113,818.55 and 49,314.99
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Solution
The fourth proportional to 76,187.91, 113,818.55 and 49,314.99 is: 73,672.59
Step by Step Solution
- Step 1: Write the proportion equation
76,187.91 : 113,818.55 = 49,314.99 : x - Step 2: Convert to fraction form
76,187.91/113,818.55 = 49,314.99/x - Step 3: Cross multiply
76,187.91x = 113,818.55 × 49,314.99 - Step 4: Simplify right side
76,187.91x = 5,612,960,778.35 - Step 5: Solve for x
x = 5,612,960,778.35/76,187.91 - Step 6: Final answer
x = 73,672.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.