Finding the Fourth Proportional to 71,730.80, 107,466.60 and 63,436.40
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Solution
The fourth proportional to 71,730.80, 107,466.60 and 63,436.40 is: 95,039.99
Step by Step Solution
- Step 1: Write the proportion equation
71,730.80 : 107,466.60 = 63,436.40 : x - Step 2: Convert to fraction form
71,730.80/107,466.60 = 63,436.40/x - Step 3: Cross multiply
71,730.80x = 107,466.60 × 63,436.40 - Step 4: Simplify right side
71,730.80x = 6,817,294,224.24 - Step 5: Solve for x
x = 6,817,294,224.24/71,730.80 - Step 6: Final answer
x = 95,039.99
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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.