Finding the Fourth Proportional to 98,290.22, 135,639.79 and 55,848.75
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Solution
The fourth proportional to 98,290.22, 135,639.79 and 55,848.75 is: 77,070.87
Step by Step Solution
- Step 1: Write the proportion equation
98,290.22 : 135,639.79 = 55,848.75 : x - Step 2: Convert to fraction form
98,290.22/135,639.79 = 55,848.75/x - Step 3: Cross multiply
98,290.22x = 135,639.79 × 55,848.75 - Step 4: Simplify right side
98,290.22x = 7,575,312,721.76 - Step 5: Solve for x
x = 7,575,312,721.76/98,290.22 - Step 6: Final answer
x = 77,070.87
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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.