Finding the Fourth Proportional to 69,435.13, 104,013.24 and 31,943.07
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Solution
The fourth proportional to 69,435.13, 104,013.24 and 31,943.07 is: 47,850.45
Step by Step Solution
- Step 1: Write the proportion equation
69,435.13 : 104,013.24 = 31,943.07 : x - Step 2: Convert to fraction form
69,435.13/104,013.24 = 31,943.07/x - Step 3: Cross multiply
69,435.13x = 104,013.24 × 31,943.07 - Step 4: Simplify right side
69,435.13x = 3,322,502,206.25 - Step 5: Solve for x
x = 3,322,502,206.25/69,435.13 - Step 6: Final answer
x = 47,850.45
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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.