Finding the Fourth Proportional to 71,802.04, 107,704.50 and 19,211.44
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Solution
The fourth proportional to 71,802.04, 107,704.50 and 19,211.44 is: 28,817.55
Step by Step Solution
- Step 1: Write the proportion equation
71,802.04 : 107,704.50 = 19,211.44 : x - Step 2: Convert to fraction form
71,802.04/107,704.50 = 19,211.44/x - Step 3: Cross multiply
71,802.04x = 107,704.50 × 19,211.44 - Step 4: Simplify right side
71,802.04x = 2,069,158,539.48 - Step 5: Solve for x
x = 2,069,158,539.48/71,802.04 - Step 6: Final answer
x = 28,817.55
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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.