Finding the Fourth Proportional to 99,569.13, 137,405.33 and 54,857.13
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Solution
The fourth proportional to 99,569.13, 137,405.33 and 54,857.13 is: 75,702.80
Step by Step Solution
- Step 1: Write the proportion equation
99,569.13 : 137,405.33 = 54,857.13 : x - Step 2: Convert to fraction form
99,569.13/137,405.33 = 54,857.13/x - Step 3: Cross multiply
99,569.13x = 137,405.33 × 54,857.13 - Step 4: Simplify right side
99,569.13x = 7,537,661,776.22 - Step 5: Solve for x
x = 7,537,661,776.22/99,569.13 - Step 6: Final answer
x = 75,702.80
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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.