Finding the Fourth Proportional to 65,101.74, 89,839.62 and 38,246.70
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Solution
The fourth proportional to 65,101.74, 89,839.62 and 38,246.70 is: 52,779.99
Step by Step Solution
- Step 1: Write the proportion equation
65,101.74 : 89,839.62 = 38,246.70 : x - Step 2: Convert to fraction form
65,101.74/89,839.62 = 38,246.70/x - Step 3: Cross multiply
65,101.74x = 89,839.62 × 38,246.70 - Step 4: Simplify right side
65,101.74x = 3,436,068,994.25 - Step 5: Solve for x
x = 3,436,068,994.25/65,101.74 - Step 6: Final answer
x = 52,779.99
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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.