Finding the Fourth Proportional to 74,497.20, 102,804.62 and 40,506.36
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Solution
The fourth proportional to 74,497.20, 102,804.62 and 40,506.36 is: 55,897.95
Step by Step Solution
- Step 1: Write the proportion equation
74,497.20 : 102,804.62 = 40,506.36 : x - Step 2: Convert to fraction form
74,497.20/102,804.62 = 40,506.36/x - Step 3: Cross multiply
74,497.20x = 102,804.62 × 40,506.36 - Step 4: Simplify right side
74,497.20x = 4,164,240,947.38 - Step 5: Solve for x
x = 4,164,240,947.38/74,497.20 - Step 6: Final answer
x = 55,897.95
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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.