Finding the Fourth Proportional to 81,617.04, 122,352.66 and 39,473.55
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Solution
The fourth proportional to 81,617.04, 122,352.66 and 39,473.55 is: 59,175.07
Step by Step Solution
- Step 1: Write the proportion equation
81,617.04 : 122,352.66 = 39,473.55 : x - Step 2: Convert to fraction form
81,617.04/122,352.66 = 39,473.55/x - Step 3: Cross multiply
81,617.04x = 122,352.66 × 39,473.55 - Step 4: Simplify right side
81,617.04x = 4,829,693,842.14 - Step 5: Solve for x
x = 4,829,693,842.14/81,617.04 - Step 6: Final answer
x = 59,175.07
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1.5x scale
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.