Finding the Fourth Proportional to 74,741.60, 103,139.52 and 46,446.68
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Solution
The fourth proportional to 74,741.60, 103,139.52 and 46,446.68 is: 64,094.00
Step by Step Solution
- Step 1: Write the proportion equation
74,741.60 : 103,139.52 = 46,446.68 : x - Step 2: Convert to fraction form
74,741.60/103,139.52 = 46,446.68/x - Step 3: Cross multiply
74,741.60x = 103,139.52 × 46,446.68 - Step 4: Simplify right side
74,741.60x = 4,790,488,280.79 - Step 5: Solve for x
x = 4,790,488,280.79/74,741.60 - Step 6: Final answer
x = 64,094.00
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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.