Finding the Fourth Proportional to 74,066.96, 102,214.68 and 40,533.68
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Solution
The fourth proportional to 74,066.96, 102,214.68 and 40,533.68 is: 55,937.72
Step by Step Solution
- Step 1: Write the proportion equation
74,066.96 : 102,214.68 = 40,533.68 : x - Step 2: Convert to fraction form
74,066.96/102,214.68 = 40,533.68/x - Step 3: Cross multiply
74,066.96x = 102,214.68 × 40,533.68 - Step 4: Simplify right side
74,066.96x = 4,143,137,130.42 - Step 5: Solve for x
x = 4,143,137,130.42/74,066.96 - Step 6: Final answer
x = 55,937.72
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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.