Finding the Fourth Proportional to 99,615.04, 137,415.36 and 63,766.48
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Solution
The fourth proportional to 99,615.04, 137,415.36 and 63,766.48 is: 87,963.56
Step by Step Solution
- Step 1: Write the proportion equation
99,615.04 : 137,415.36 = 63,766.48 : x - Step 2: Convert to fraction form
99,615.04/137,415.36 = 63,766.48/x - Step 3: Cross multiply
99,615.04x = 137,415.36 × 63,766.48 - Step 4: Simplify right side
99,615.04x = 8,762,493,805.13 - Step 5: Solve for x
x = 8,762,493,805.13/99,615.04 - Step 6: Final answer
x = 87,963.56
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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.