Finding the Fourth Proportional to 98,246.48, 135,575.88 and 55,815.44
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Solution
The fourth proportional to 98,246.48, 135,575.88 and 55,815.44 is: 77,022.89
Step by Step Solution
- Step 1: Write the proportion equation
98,246.48 : 135,575.88 = 55,815.44 : x - Step 2: Convert to fraction form
98,246.48/135,575.88 = 55,815.44/x - Step 3: Cross multiply
98,246.48x = 135,575.88 × 55,815.44 - Step 4: Simplify right side
98,246.48x = 7,567,227,395.59 - Step 5: Solve for x
x = 7,567,227,395.59/98,246.48 - Step 6: Final answer
x = 77,022.89
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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.