Finding the Fourth Proportional to 70,435.68, 105,653.79 and 17,845.08
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Solution
The fourth proportional to 70,435.68, 105,653.79 and 17,845.08 is: 26,767.69
Step by Step Solution
- Step 1: Write the proportion equation
70,435.68 : 105,653.79 = 17,845.08 : x - Step 2: Convert to fraction form
70,435.68/105,653.79 = 17,845.08/x - Step 3: Cross multiply
70,435.68x = 105,653.79 × 17,845.08 - Step 4: Simplify right side
70,435.68x = 1,885,400,334.85 - Step 5: Solve for x
x = 1,885,400,334.85/70,435.68 - Step 6: Final answer
x = 26,767.69
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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.