Finding the Fourth Proportional to 98,489.04, 135,949.80 and 58,216.68
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Solution
The fourth proportional to 98,489.04, 135,949.80 and 58,216.68 is: 80,359.66
Step by Step Solution
- Step 1: Write the proportion equation
98,489.04 : 135,949.80 = 58,216.68 : x - Step 2: Convert to fraction form
98,489.04/135,949.80 = 58,216.68/x - Step 3: Cross multiply
98,489.04x = 135,949.80 × 58,216.68 - Step 4: Simplify right side
98,489.04x = 7,914,546,002.66 - Step 5: Solve for x
x = 7,914,546,002.66/98,489.04 - Step 6: Final answer
x = 80,359.66
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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.