Finding the Fourth Proportional to 72,294.93, 108,439.21 and 19,704.41
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Solution
The fourth proportional to 72,294.93, 108,439.21 and 19,704.41 is: 29,555.75
Step by Step Solution
- Step 1: Write the proportion equation
72,294.93 : 108,439.21 = 19,704.41 : x - Step 2: Convert to fraction form
72,294.93/108,439.21 = 19,704.41/x - Step 3: Cross multiply
72,294.93x = 108,439.21 × 19,704.41 - Step 4: Simplify right side
72,294.93x = 2,136,731,042.13 - Step 5: Solve for x
x = 2,136,731,042.13/72,294.93 - Step 6: Final answer
x = 29,555.75
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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.