Finding the Fourth Proportional to 98,308.20, 135,670.50 and 53,599.08
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Solution
The fourth proportional to 98,308.20, 135,670.50 and 53,599.08 is: 73,969.56
Step by Step Solution
- Step 1: Write the proportion equation
98,308.20 : 135,670.50 = 53,599.08 : x - Step 2: Convert to fraction form
98,308.20/135,670.50 = 53,599.08/x - Step 3: Cross multiply
98,308.20x = 135,670.50 × 53,599.08 - Step 4: Simplify right side
98,308.20x = 7,271,813,983.14 - Step 5: Solve for x
x = 7,271,813,983.14/98,308.20 - Step 6: Final answer
x = 73,969.56
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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.