Finding the Fourth Proportional to 68,662.93, 103,009.11 and 21,276.99
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Solution
The fourth proportional to 68,662.93, 103,009.11 and 21,276.99 is: 31,920.04
Step by Step Solution
- Step 1: Write the proportion equation
68,662.93 : 103,009.11 = 21,276.99 : x - Step 2: Convert to fraction form
68,662.93/103,009.11 = 21,276.99/x - Step 3: Cross multiply
68,662.93x = 103,009.11 × 21,276.99 - Step 4: Simplify right side
68,662.93x = 2,191,723,803.38 - Step 5: Solve for x
x = 2,191,723,803.38/68,662.93 - Step 6: Final answer
x = 31,920.04
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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.