Finding the Fourth Proportional to 85,113.74, 117,454.83 and 46,872.99
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Solution
The fourth proportional to 85,113.74, 117,454.83 and 46,872.99 is: 64,683.55
Step by Step Solution
- Step 1: Write the proportion equation
85,113.74 : 117,454.83 = 46,872.99 : x - Step 2: Convert to fraction form
85,113.74/117,454.83 = 46,872.99/x - Step 3: Cross multiply
85,113.74x = 117,454.83 × 46,872.99 - Step 4: Simplify right side
85,113.74x = 5,505,459,072.04 - Step 5: Solve for x
x = 5,505,459,072.04/85,113.74 - Step 6: Final answer
x = 64,683.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.