Finding the Fourth Proportional to 98,541.68, 135,987.50 and 53,219.66
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Solution
The fourth proportional to 98,541.68, 135,987.50 and 53,219.66 is: 73,443.11
Step by Step Solution
- Step 1: Write the proportion equation
98,541.68 : 135,987.50 = 53,219.66 : x - Step 2: Convert to fraction form
98,541.68/135,987.50 = 53,219.66/x - Step 3: Cross multiply
98,541.68x = 135,987.50 × 53,219.66 - Step 4: Simplify right side
98,541.68x = 7,237,207,568.21 - Step 5: Solve for x
x = 7,237,207,568.21/98,541.68 - Step 6: Final answer
x = 73,443.11
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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.