Finding the Fourth Proportional to 74,459.14, 102,754.40 and 40,467.63
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Solution
The fourth proportional to 74,459.14, 102,754.40 and 40,467.63 is: 55,845.76
Step by Step Solution
- Step 1: Write the proportion equation
74,459.14 : 102,754.40 = 40,467.63 : x - Step 2: Convert to fraction form
74,459.14/102,754.40 = 40,467.63/x - Step 3: Cross multiply
74,459.14x = 102,754.40 × 40,467.63 - Step 4: Simplify right side
74,459.14x = 4,158,227,040.07 - Step 5: Solve for x
x = 4,158,227,040.07/74,459.14 - Step 6: Final answer
x = 55,845.76
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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.