Finding the Fourth Proportional to 98,636.96, 136,119.12 and 53,924.96
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Solution
The fourth proportional to 98,636.96, 136,119.12 and 53,924.96 is: 74,416.51
Step by Step Solution
- Step 1: Write the proportion equation
98,636.96 : 136,119.12 = 53,924.96 : x - Step 2: Convert to fraction form
98,636.96/136,119.12 = 53,924.96/x - Step 3: Cross multiply
98,636.96x = 136,119.12 × 53,924.96 - Step 4: Simplify right side
98,636.96x = 7,340,218,101.24 - Step 5: Solve for x
x = 7,340,218,101.24/98,636.96 - Step 6: Final answer
x = 74,416.51
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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.