Finding the Fourth Proportional to 69,291.36, 103,893.48 and 29,289.60
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Solution
The fourth proportional to 69,291.36, 103,893.48 and 29,289.60 is: 43,915.99
Step by Step Solution
- Step 1: Write the proportion equation
69,291.36 : 103,893.48 = 29,289.60 : x - Step 2: Convert to fraction form
69,291.36/103,893.48 = 29,289.60/x - Step 3: Cross multiply
69,291.36x = 103,893.48 × 29,289.60 - Step 4: Simplify right side
69,291.36x = 3,042,998,471.81 - Step 5: Solve for x
x = 3,042,998,471.81/69,291.36 - Step 6: Final answer
x = 43,915.99
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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.