Finding the Fourth Proportional to 98,475.84, 135,881.91 and 55,449.09
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Solution
The fourth proportional to 98,475.84, 135,881.91 and 55,449.09 is: 76,511.44
Step by Step Solution
- Step 1: Write the proportion equation
98,475.84 : 135,881.91 = 55,449.09 : x - Step 2: Convert to fraction form
98,475.84/135,881.91 = 55,449.09/x - Step 3: Cross multiply
98,475.84x = 135,881.91 × 55,449.09 - Step 4: Simplify right side
98,475.84x = 7,534,528,256.96 - Step 5: Solve for x
x = 7,534,528,256.96/98,475.84 - Step 6: Final answer
x = 76,511.44
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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.