Finding the Fourth Proportional to 75,679.74, 104,438.07 and 43,867.08
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Solution
The fourth proportional to 75,679.74, 104,438.07 and 43,867.08 is: 60,536.59
Step by Step Solution
- Step 1: Write the proportion equation
75,679.74 : 104,438.07 = 43,867.08 : x - Step 2: Convert to fraction form
75,679.74/104,438.07 = 43,867.08/x - Step 3: Cross multiply
75,679.74x = 104,438.07 × 43,867.08 - Step 4: Simplify right side
75,679.74x = 4,581,393,171.74 - Step 5: Solve for x
x = 4,581,393,171.74/75,679.74 - Step 6: Final answer
x = 60,536.59
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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.