Finding the Fourth Proportional to 98,319.18, 135,691.98 and 55,884.09
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Solution
The fourth proportional to 98,319.18, 135,691.98 and 55,884.09 is: 77,126.59
Step by Step Solution
- Step 1: Write the proportion equation
98,319.18 : 135,691.98 = 55,884.09 : x - Step 2: Convert to fraction form
98,319.18/135,691.98 = 55,884.09/x - Step 3: Cross multiply
98,319.18x = 135,691.98 × 55,884.09 - Step 4: Simplify right side
98,319.18x = 7,583,022,822.60 - Step 5: Solve for x
x = 7,583,022,822.60/98,319.18 - Step 6: Final answer
x = 77,126.59
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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.