Finding the Fourth Proportional to 98,530.26, 135,971.88 and 56,088.75
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Solution
The fourth proportional to 98,530.26, 135,971.88 and 56,088.75 is: 77,402.54
Step by Step Solution
- Step 1: Write the proportion equation
98,530.26 : 135,971.88 = 56,088.75 : x - Step 2: Convert to fraction form
98,530.26/135,971.88 = 56,088.75/x - Step 3: Cross multiply
98,530.26x = 135,971.88 × 56,088.75 - Step 4: Simplify right side
98,530.26x = 7,626,492,784.35 - Step 5: Solve for x
x = 7,626,492,784.35/98,530.26 - Step 6: Final answer
x = 77,402.54
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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.