Finding the Fourth Proportional to 98,511.08, 135,952.18 and 56,069.62
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Solution
The fourth proportional to 98,511.08, 135,952.18 and 56,069.62 is: 77,380.00
Step by Step Solution
- Step 1: Write the proportion equation
98,511.08 : 135,952.18 = 56,069.62 : x - Step 2: Convert to fraction form
98,511.08/135,952.18 = 56,069.62/x - Step 3: Cross multiply
98,511.08x = 135,952.18 × 56,069.62 - Step 4: Simplify right side
98,511.08x = 7,622,786,590.72 - Step 5: Solve for x
x = 7,622,786,590.72/98,511.08 - Step 6: Final answer
x = 77,380.00
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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.