Finding the Fourth Proportional to 66,965.14, 100,455.99 and 31,408.12
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Solution
The fourth proportional to 66,965.14, 100,455.99 and 31,408.12 is: 47,116.06
Step by Step Solution
- Step 1: Write the proportion equation
66,965.14 : 100,455.99 = 31,408.12 : x - Step 2: Convert to fraction form
66,965.14/100,455.99 = 31,408.12/x - Step 3: Cross multiply
66,965.14x = 100,455.99 × 31,408.12 - Step 4: Simplify right side
66,965.14x = 3,155,133,788.64 - Step 5: Solve for x
x = 3,155,133,788.64/66,965.14 - Step 6: Final answer
x = 47,116.06
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.