Finding the Fourth Proportional to 68,948.20, 103,422.30 and 48,827.80
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Solution
The fourth proportional to 68,948.20, 103,422.30 and 48,827.80 is: 73,241.70
Step by Step Solution
- Step 1: Write the proportion equation
68,948.20 : 103,422.30 = 48,827.80 : x - Step 2: Convert to fraction form
68,948.20/103,422.30 = 48,827.80/x - Step 3: Cross multiply
68,948.20x = 103,422.30 × 48,827.80 - Step 4: Simplify right side
68,948.20x = 5,049,883,379.94 - Step 5: Solve for x
x = 5,049,883,379.94/68,948.20 - Step 6: Final answer
x = 73,241.70
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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.