Finding the Fourth Proportional to 73,683.09, 110,432.21 and 31,513.68
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Solution
The fourth proportional to 73,683.09, 110,432.21 and 31,513.68 is: 47,230.99
Step by Step Solution
- Step 1: Write the proportion equation
73,683.09 : 110,432.21 = 31,513.68 : x - Step 2: Convert to fraction form
73,683.09/110,432.21 = 31,513.68/x - Step 3: Cross multiply
73,683.09x = 110,432.21 × 31,513.68 - Step 4: Simplify right side
73,683.09x = 3,480,125,657.92 - Step 5: Solve for x
x = 3,480,125,657.92/73,683.09 - Step 6: Final answer
x = 47,230.99
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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.