Finding the Fourth Proportional to 74,484.48, 102,785.60 and 40,950.08
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Solution
The fourth proportional to 74,484.48, 102,785.60 and 40,950.08 is: 56,509.47
Step by Step Solution
- Step 1: Write the proportion equation
74,484.48 : 102,785.60 = 40,950.08 : x - Step 2: Convert to fraction form
74,484.48/102,785.60 = 40,950.08/x - Step 3: Cross multiply
74,484.48x = 102,785.60 × 40,950.08 - Step 4: Simplify right side
74,484.48x = 4,209,078,542.85 - Step 5: Solve for x
x = 4,209,078,542.85/74,484.48 - Step 6: Final answer
x = 56,509.47
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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.