Finding the Fourth Proportional to 68,916.17, 103,376.99 and 21,563.08
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Solution
The fourth proportional to 68,916.17, 103,376.99 and 21,563.08 is: 32,345.47
Step by Step Solution
- Step 1: Write the proportion equation
68,916.17 : 103,376.99 = 21,563.08 : x - Step 2: Convert to fraction form
68,916.17/103,376.99 = 21,563.08/x - Step 3: Cross multiply
68,916.17x = 103,376.99 × 21,563.08 - Step 4: Simplify right side
68,916.17x = 2,229,126,100.99 - Step 5: Solve for x
x = 2,229,126,100.99/68,916.17 - Step 6: Final answer
x = 32,345.47
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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.