Finding the Fourth Proportional to 98,347.60, 135,696.36 and 55,902.79
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Solution
The fourth proportional to 98,347.60, 135,696.36 and 55,902.79 is: 77,132.59
Step by Step Solution
- Step 1: Write the proportion equation
98,347.60 : 135,696.36 = 55,902.79 : x - Step 2: Convert to fraction form
98,347.60/135,696.36 = 55,902.79/x - Step 3: Cross multiply
98,347.60x = 135,696.36 × 55,902.79 - Step 4: Simplify right side
98,347.60x = 7,585,805,116.84 - Step 5: Solve for x
x = 7,585,805,116.84/98,347.60 - Step 6: Final answer
x = 77,132.59
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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.