Finding the Fourth Proportional to 75,159.18, 103,669.72 and 48,335.62
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Solution
The fourth proportional to 75,159.18, 103,669.72 and 48,335.62 is: 66,671.03
Step by Step Solution
- Step 1: Write the proportion equation
75,159.18 : 103,669.72 = 48,335.62 : x - Step 2: Convert to fraction form
75,159.18/103,669.72 = 48,335.62/x - Step 3: Cross multiply
75,159.18x = 103,669.72 × 48,335.62 - Step 4: Simplify right side
75,159.18x = 5,010,940,191.43 - Step 5: Solve for x
x = 5,010,940,191.43/75,159.18 - Step 6: Final answer
x = 66,671.03
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1.5x scale
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.