Finding the Fourth Proportional to 98,359.26, 135,730.71 and 53,638.62
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Solution
The fourth proportional to 98,359.26, 135,730.71 and 53,638.62 is: 74,018.53
Step by Step Solution
- Step 1: Write the proportion equation
98,359.26 : 135,730.71 = 53,638.62 : x - Step 2: Convert to fraction form
98,359.26/135,730.71 = 53,638.62/x - Step 3: Cross multiply
98,359.26x = 135,730.71 × 53,638.62 - Step 4: Simplify right side
98,359.26x = 7,280,407,976.02 - Step 5: Solve for x
x = 7,280,407,976.02/98,359.26 - Step 6: Final answer
x = 74,018.53
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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.