Finding the Fourth Proportional to 75,623.71, 113,435.59 and 31,201.66
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Solution
The fourth proportional to 75,623.71, 113,435.59 and 31,201.66 is: 46,802.50
Step by Step Solution
- Step 1: Write the proportion equation
75,623.71 : 113,435.59 = 31,201.66 : x - Step 2: Convert to fraction form
75,623.71/113,435.59 = 31,201.66/x - Step 3: Cross multiply
75,623.71x = 113,435.59 × 31,201.66 - Step 4: Simplify right side
75,623.71x = 3,539,378,711.08 - Step 5: Solve for x
x = 3,539,378,711.08/75,623.71 - Step 6: Final answer
x = 46,802.50
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1.5x scale
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.