Finding the Fourth Proportional to 74,475.72, 102,773.70 and 42,622.02
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Solution
The fourth proportional to 74,475.72, 102,773.70 and 42,622.02 is: 58,816.79
Step by Step Solution
- Step 1: Write the proportion equation
74,475.72 : 102,773.70 = 42,622.02 : x - Step 2: Convert to fraction form
74,475.72/102,773.70 = 42,622.02/x - Step 3: Cross multiply
74,475.72x = 102,773.70 × 42,622.02 - Step 4: Simplify right side
74,475.72x = 4,380,422,696.87 - Step 5: Solve for x
x = 4,380,422,696.87/74,475.72 - Step 6: Final answer
x = 58,816.79
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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.