Finding the Fourth Proportional to 97,272.96, 145,915.92 and 30,715.80
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Solution
The fourth proportional to 97,272.96, 145,915.92 and 30,715.80 is: 46,075.75
Step by Step Solution
- Step 1: Write the proportion equation
97,272.96 : 145,915.92 = 30,715.80 : x - Step 2: Convert to fraction form
97,272.96/145,915.92 = 30,715.80/x - Step 3: Cross multiply
97,272.96x = 145,915.92 × 30,715.80 - Step 4: Simplify right side
97,272.96x = 4,481,924,215.54 - Step 5: Solve for x
x = 4,481,924,215.54/97,272.96 - Step 6: Final answer
x = 46,075.75
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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.