Finding the Fourth Proportional to 74,598.21, 102,946.84 and 40,607.68
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Solution
The fourth proportional to 74,598.21, 102,946.84 and 40,607.68 is: 56,039.30
Step by Step Solution
- Step 1: Write the proportion equation
74,598.21 : 102,946.84 = 40,607.68 : x - Step 2: Convert to fraction form
74,598.21/102,946.84 = 40,607.68/x - Step 3: Cross multiply
74,598.21x = 102,946.84 × 40,607.68 - Step 4: Simplify right side
74,598.21x = 4,180,431,871.76 - Step 5: Solve for x
x = 4,180,431,871.76/74,598.21 - Step 6: Final answer
x = 56,039.30
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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.