Finding the Fourth Proportional to 68,700.76, 103,057.97 and 21,313.94
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Solution
The fourth proportional to 68,700.76, 103,057.97 and 21,313.94 is: 31,973.02
Step by Step Solution
- Step 1: Write the proportion equation
68,700.76 : 103,057.97 = 21,313.94 : x - Step 2: Convert to fraction form
68,700.76/103,057.97 = 21,313.94/x - Step 3: Cross multiply
68,700.76x = 103,057.97 × 21,313.94 - Step 4: Simplify right side
68,700.76x = 2,196,570,887.13 - Step 5: Solve for x
x = 2,196,570,887.13/68,700.76 - Step 6: Final answer
x = 31,973.02
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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.