Finding the Fourth Proportional to 85,077.36, 117,404.76 and 47,350.80
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Solution
The fourth proportional to 85,077.36, 117,404.76 and 47,350.80 is: 65,342.99
Step by Step Solution
- Step 1: Write the proportion equation
85,077.36 : 117,404.76 = 47,350.80 : x - Step 2: Convert to fraction form
85,077.36/117,404.76 = 47,350.80/x - Step 3: Cross multiply
85,077.36x = 117,404.76 × 47,350.80 - Step 4: Simplify right side
85,077.36x = 5,559,209,309.81 - Step 5: Solve for x
x = 5,559,209,309.81/85,077.36 - Step 6: Final answer
x = 65,342.99
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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.