Finding the Fourth Proportional to 74,252.88, 102,475.08 and 42,431.76
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Solution
The fourth proportional to 74,252.88, 102,475.08 and 42,431.76 is: 58,559.32
Step by Step Solution
- Step 1: Write the proportion equation
74,252.88 : 102,475.08 = 42,431.76 : x - Step 2: Convert to fraction form
74,252.88/102,475.08 = 42,431.76/x - Step 3: Cross multiply
74,252.88x = 102,475.08 × 42,431.76 - Step 4: Simplify right side
74,252.88x = 4,348,198,000.54 - Step 5: Solve for x
x = 4,348,198,000.54/74,252.88 - Step 6: Final answer
x = 58,559.32
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1.5x scale
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.