Finding the Fourth Proportional to 68,490.21, 102,569.24 and 47,370.98
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Solution
The fourth proportional to 68,490.21, 102,569.24 and 47,370.98 is: 70,941.61
Step by Step Solution
- Step 1: Write the proportion equation
68,490.21 : 102,569.24 = 47,370.98 : x - Step 2: Convert to fraction form
68,490.21/102,569.24 = 47,370.98/x - Step 3: Cross multiply
68,490.21x = 102,569.24 × 47,370.98 - Step 4: Simplify right side
68,490.21x = 4,858,805,791.51 - Step 5: Solve for x
x = 4,858,805,791.51/68,490.21 - Step 6: Final answer
x = 70,941.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.