Finding the Fourth Proportional to 68,830.21, 103,289.01 and 29,387.62
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Solution
The fourth proportional to 68,830.21, 103,289.01 and 29,387.62 is: 44,100.09
Step by Step Solution
- Step 1: Write the proportion equation
68,830.21 : 103,289.01 = 29,387.62 : x - Step 2: Convert to fraction form
68,830.21/103,289.01 = 29,387.62/x - Step 3: Cross multiply
68,830.21x = 103,289.01 × 29,387.62 - Step 4: Simplify right side
68,830.21x = 3,035,418,176.06 - Step 5: Solve for x
x = 3,035,418,176.06/68,830.21 - Step 6: Final answer
x = 44,100.09
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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.