Finding the Fourth Proportional to 69,203.24, 103,638.42 and 39,531.08
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Solution
The fourth proportional to 69,203.24, 103,638.42 and 39,531.08 is: 59,201.54
Step by Step Solution
- Step 1: Write the proportion equation
69,203.24 : 103,638.42 = 39,531.08 : x - Step 2: Convert to fraction form
69,203.24/103,638.42 = 39,531.08/x - Step 3: Cross multiply
69,203.24x = 103,638.42 × 39,531.08 - Step 4: Simplify right side
69,203.24x = 4,096,938,672.09 - Step 5: Solve for x
x = 4,096,938,672.09/69,203.24 - Step 6: Final answer
x = 59,201.54
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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.