Finding the Fourth Proportional to 93,965.44, 129,525.12 and 71,213.36
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Solution
The fourth proportional to 93,965.44, 129,525.12 and 71,213.36 is: 98,162.89
Step by Step Solution
- Step 1: Write the proportion equation
93,965.44 : 129,525.12 = 71,213.36 : x - Step 2: Convert to fraction form
93,965.44/129,525.12 = 71,213.36/x - Step 3: Cross multiply
93,965.44x = 129,525.12 × 71,213.36 - Step 4: Simplify right side
93,965.44x = 9,223,918,999.60 - Step 5: Solve for x
x = 9,223,918,999.60/93,965.44 - Step 6: Final answer
x = 98,162.89
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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.