Finding the Fourth Proportional to 74,311.40, 102,558.18 and 44,503.40
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Solution
The fourth proportional to 74,311.40, 102,558.18 and 44,503.40 is: 61,419.75
Step by Step Solution
- Step 1: Write the proportion equation
74,311.40 : 102,558.18 = 44,503.40 : x - Step 2: Convert to fraction form
74,311.40/102,558.18 = 44,503.40/x - Step 3: Cross multiply
74,311.40x = 102,558.18 × 44,503.40 - Step 4: Simplify right side
74,311.40x = 4,564,187,707.81 - Step 5: Solve for x
x = 4,564,187,707.81/74,311.40 - Step 6: Final answer
x = 61,419.75
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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.