Finding the Fourth Proportional to 74,062.13, 102,205.80 and 40,528.13
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Solution
The fourth proportional to 74,062.13, 102,205.80 and 40,528.13 is: 55,928.85
Step by Step Solution
- Step 1: Write the proportion equation
74,062.13 : 102,205.80 = 40,528.13 : x - Step 2: Convert to fraction form
74,062.13/102,205.80 = 40,528.13/x - Step 3: Cross multiply
74,062.13x = 102,205.80 × 40,528.13 - Step 4: Simplify right side
74,062.13x = 4,142,209,438.13 - Step 5: Solve for x
x = 4,142,209,438.13/74,062.13 - Step 6: Final answer
x = 55,928.85
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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.