Finding the Fourth Proportional to 66,955.96, 100,440.43 and 19,569.99
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Solution
The fourth proportional to 66,955.96, 100,440.43 and 19,569.99 is: 29,356.88
Step by Step Solution
- Step 1: Write the proportion equation
66,955.96 : 100,440.43 = 19,569.99 : x - Step 2: Convert to fraction form
66,955.96/100,440.43 = 19,569.99/x - Step 3: Cross multiply
66,955.96x = 100,440.43 × 19,569.99 - Step 4: Simplify right side
66,955.96x = 1,965,618,210.70 - Step 5: Solve for x
x = 1,965,618,210.70/66,955.96 - Step 6: Final answer
x = 29,356.88
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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.