Finding the Fourth Proportional to 74,447.37, 102,737.79 and 40,456.14
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Solution
The fourth proportional to 74,447.37, 102,737.79 and 40,456.14 is: 55,829.70
Step by Step Solution
- Step 1: Write the proportion equation
74,447.37 : 102,737.79 = 40,456.14 : x - Step 2: Convert to fraction form
74,447.37/102,737.79 = 40,456.14/x - Step 3: Cross multiply
74,447.37x = 102,737.79 × 40,456.14 - Step 4: Simplify right side
74,447.37x = 4,156,374,415.53 - Step 5: Solve for x
x = 4,156,374,415.53/74,447.37 - Step 6: Final answer
x = 55,829.70
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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.