Finding the Fourth Proportional to 68,617.81, 102,916.20 and 18,701.93
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Solution
The fourth proportional to 68,617.81, 102,916.20 and 18,701.93 is: 28,050.02
Step by Step Solution
- Step 1: Write the proportion equation
68,617.81 : 102,916.20 = 18,701.93 : x - Step 2: Convert to fraction form
68,617.81/102,916.20 = 18,701.93/x - Step 3: Cross multiply
68,617.81x = 102,916.20 × 18,701.93 - Step 4: Simplify right side
68,617.81x = 1,924,731,191.78 - Step 5: Solve for x
x = 1,924,731,191.78/68,617.81 - Step 6: Final answer
x = 28,050.02
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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.