Finding the Fourth Proportional to 70,461.73, 105,729.05 and 31,051.99
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Solution
The fourth proportional to 70,461.73, 105,729.05 and 31,051.99 is: 46,594.05
Step by Step Solution
- Step 1: Write the proportion equation
70,461.73 : 105,729.05 = 31,051.99 : x - Step 2: Convert to fraction form
70,461.73/105,729.05 = 31,051.99/x - Step 3: Cross multiply
70,461.73x = 105,729.05 × 31,051.99 - Step 4: Simplify right side
70,461.73x = 3,283,097,403.31 - Step 5: Solve for x
x = 3,283,097,403.31/70,461.73 - Step 6: Final answer
x = 46,594.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.