Finding the Fourth Proportional to 76,310.06, 105,320.18 and 44,472.80
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Solution
The fourth proportional to 76,310.06, 105,320.18 and 44,472.80 is: 61,379.63
Step by Step Solution
- Step 1: Write the proportion equation
76,310.06 : 105,320.18 = 44,472.80 : x - Step 2: Convert to fraction form
76,310.06/105,320.18 = 44,472.80/x - Step 3: Cross multiply
76,310.06x = 105,320.18 × 44,472.80 - Step 4: Simplify right side
76,310.06x = 4,683,883,301.10 - Step 5: Solve for x
x = 4,683,883,301.10/76,310.06 - Step 6: Final answer
x = 61,379.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.