Finding the Fourth Proportional to 99,518.16, 137,328.84 and 54,806.16
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Solution
The fourth proportional to 99,518.16, 137,328.84 and 54,806.16 is: 75,629.07
Step by Step Solution
- Step 1: Write the proportion equation
99,518.16 : 137,328.84 = 54,806.16 : x - Step 2: Convert to fraction form
99,518.16/137,328.84 = 54,806.16/x - Step 3: Cross multiply
99,518.16x = 137,328.84 × 54,806.16 - Step 4: Simplify right side
99,518.16x = 7,526,466,377.65 - Step 5: Solve for x
x = 7,526,466,377.65/99,518.16 - Step 6: Final answer
x = 75,629.07
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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.