Finding the Fourth Proportional to 74,496.68, 102,796.80 and 42,663.68
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Solution
The fourth proportional to 74,496.68, 102,796.80 and 42,663.68 is: 58,870.94
Step by Step Solution
- Step 1: Write the proportion equation
74,496.68 : 102,796.80 = 42,663.68 : x - Step 2: Convert to fraction form
74,496.68/102,796.80 = 42,663.68/x - Step 3: Cross multiply
74,496.68x = 102,796.80 × 42,663.68 - Step 4: Simplify right side
74,496.68x = 4,385,689,780.22 - Step 5: Solve for x
x = 4,385,689,780.22/74,496.68 - Step 6: Final answer
x = 58,870.94
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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.