Finding the Fourth Proportional to 85,507.50, 118,033.26 and 76,539.18
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Solution
The fourth proportional to 85,507.50, 118,033.26 and 76,539.18 is: 105,653.53
Step by Step Solution
- Step 1: Write the proportion equation
85,507.50 : 118,033.26 = 76,539.18 : x - Step 2: Convert to fraction form
85,507.50/118,033.26 = 76,539.18/x - Step 3: Cross multiply
85,507.50x = 118,033.26 × 76,539.18 - Step 4: Simplify right side
85,507.50x = 9,034,168,933.13 - Step 5: Solve for x
x = 9,034,168,933.13/85,507.50 - Step 6: Final answer
x = 105,653.53
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1.5x scale
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.