Finding the Fourth Proportional to 75,432.18, 104,011.08 and 48,172.44
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Solution
The fourth proportional to 75,432.18, 104,011.08 and 48,172.44 is: 66,423.47
Step by Step Solution
- Step 1: Write the proportion equation
75,432.18 : 104,011.08 = 48,172.44 : x - Step 2: Convert to fraction form
75,432.18/104,011.08 = 48,172.44/x - Step 3: Cross multiply
75,432.18x = 104,011.08 × 48,172.44 - Step 4: Simplify right side
75,432.18x = 5,010,467,510.64 - Step 5: Solve for x
x = 5,010,467,510.64/75,432.18 - Step 6: Final answer
x = 66,423.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.