Finding the Fourth Proportional to 88,871.18, 122,643.70 and 53,064.32
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Solution
The fourth proportional to 88,871.18, 122,643.70 and 53,064.32 is: 73,229.64
Step by Step Solution
- Step 1: Write the proportion equation
88,871.18 : 122,643.70 = 53,064.32 : x - Step 2: Convert to fraction form
88,871.18/122,643.70 = 53,064.32/x - Step 3: Cross multiply
88,871.18x = 122,643.70 × 53,064.32 - Step 4: Simplify right side
88,871.18x = 6,508,004,584.07 - Step 5: Solve for x
x = 6,508,004,584.07/88,871.18 - Step 6: Final answer
x = 73,229.64
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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.