Finding the Fourth Proportional to 74,305.70, 102,541.86 and 42,475.28
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Solution
The fourth proportional to 74,305.70, 102,541.86 and 42,475.28 is: 58,615.88
Step by Step Solution
- Step 1: Write the proportion equation
74,305.70 : 102,541.86 = 42,475.28 : x - Step 2: Convert to fraction form
74,305.70/102,541.86 = 42,475.28/x - Step 3: Cross multiply
74,305.70x = 102,541.86 × 42,475.28 - Step 4: Simplify right side
74,305.70x = 4,355,494,215.22 - Step 5: Solve for x
x = 4,355,494,215.22/74,305.70 - Step 6: Final answer
x = 58,615.88
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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.